About Thomson Financial
Thomson Financial is a US$1.73 billion provider of information and
technology solutions to the worldwide financial community."

Stage 1 opens its doors again with Olivia Newton-John in concert on April
21st, 2005 at 8 p. Komen Foundation, a global leader in the fight
to eradicate breast cancer as a life-threatening disease by advancing
research, education , screening and treatment in communities around the
world. With a worldwide network, the foundation works through its funding
of innovative research and
community-based outreach programs.

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We will focus on
scaling Tekelec's financial infrastructure as we work to grow the
business globally and bring the recent acquisitions to profitability.

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Kids Rock Free music education program for
children from 7-17 has benefited over 5,000 children from Corona and
surrounding communities and still has thousands on the two-year waiting
list.

TICKETS: 1 877-8 STAGE1 or www.

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"His past experiences, coupled with a deep
understanding of our customers' businesses, will be a real boost to our
technology capabilities and will enable him to continue to build on our high
performing global technology teams.
For those who live and work in the Inland
Empire, the Corona area has lacked one significant element to mark its
arrival as a major cosmopolitan community -- a state -of-the-art concert
facility/entertainment complex to attract national talent.com

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com ), a global leader in providing integrated
information solutions to more than 20 million business and professional
customers in the fields of law, tax, accounting, financial services, higher
education , reference information, corporate e-learning and assessment,
scientific research and healthcare.

With revenues of US$8.
Tekelec's innovative solutions are widely deployed in traditional and
next -generation wireline and wireless networks and contact centers
worldwide.

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Thomson Financial Names William Krivoshik Chief Technology Officer

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m. For more information, please visit www.

Links to biographical categories for people known by the name of Ward, either as a single name or as a surname.

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As Thomson Financial's CTO, Bill will provide the overarching technology
vision and strategy to meet Thomson Financial's business goals. Prior to joining Chemfab, Everett was the vice
president of finance of Epsilon Data Management, a publicly traded
database management software and services company.

Everett is a
certified public accountant and has a bachelor of arts degree from
Middlebury College and a master's degree in business administration
from the University of New Hampshire.

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He will
oversee key operational initiatives; network and technical operations; data
center management; quality assurance; the Content Group; business information
systems; and Thomson Financial's Bangalore technology team . The kick-off concert with Lonestar on April 17th, 2005 at 8
p.

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"I am very pleased to have Bill joining the Tekelec management
team as chief financial officer," said Fred Lax, Tekelec's president
and CEO.

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Business Editors/Technology Editors

CALABASAS, Calif.

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Prior to that, Bill was Chief
Information Officer for American International Group (AIG). Recently, he has
worked with Tekelec's finance and accounting team to complete the
Company's evaluation of its internal controls as required by Section
404 of Sarbanes-Oxley.

william bill

thomson. Opening Act, Singer/Songwriter/Guitarist, Deborah Liv
Johnson performs before Olivia Newton-John hits the stage.

william acting

Krivoshik joins Thomson Financial from Citigroup where he served as the
global head of technology for one of Citigroup's four business sectors, Global
Investment Management, as well as the global head of operations for
Citigroup's Life + Annuity business.

"What we're trying to ultimately achieve is expansion and growth," states
Donna MacDonald, Executive Director of Fender Center for the Performing
Arts /Kids Rock Free which currently offers professional caliber performing
arts education including piano , guitar, bass guitar, combo band, vocal
performance and drums.m.com. Bill's previous experience as the CFO of two publicly traded
companies and his extensive global finance and accounting expertise
combined with his demonstrated ability to manage in a high-growth,
high-tech environment, made it clear that Bill was the right person
for the job.

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Bill will serve
as a key member of the company 's Executive Committee and will represent
Thomson Financial on The Thomson Corporation's CTO Council .
(Click here for details)

Stage1 at Candlewalk-Order tix

Stage 1 will be donating a large portion of its proceeds to local
non-profits. During his eight years with the firm, his assignments
included working with numerous high-technology companies.

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NEW YORK, Thomson Financial, an operating
unit of The Thomson Corporation (NYSE: TOC; TSX: TOC), and leading provider of
financial information and technology solutions to the worldwide financial
community, today announced the appointment of Bill Krivoshik as its chief
technology officer, reporting to CEO Sharon Rowlands.

Tekelec Appoints William Everett Chief Financial Officer

Everett began
his finance career at Price Waterhouse in its general audit practice
in Boston.

leland illustration

"We are very fortunate to have someone of Bill's caliber join Thomson
Financial," said Rowlands.----Tekelec
(NASDAQ:TKLC), a leading developer of telecommunications products for
next -generation fixed, mobile and packet networks, today announced
that William Everett, the former chief financial officer of Steleus
Group, Inc.

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Thomson Financial is part of The Thomson
Corporation (http://www. The concert
beneficiary is The Susan G. "Over the past several months, we have conducted an extensive
search and have evaluated numerous qualified candidates for the CFO
position.
Everett stated, "I am very pleased to be assuming the
responsibilities of chief financial officer and am excited about
joining the Tekelec management team."

About Tekelec

Tekelec is a leading developer of now and next-generation
signaling and switching telecommunications solutions, network
performance management technology and value-added applications.

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"
Before Citigroup and AIG , Krivoshik held senior posts at GE Capital, NYNEX
and Andersen Consulting (now Accenture) and holds a master's degree in
computer science from Stanford University. Everett has also
held executive and senior finance positions at several high technology
companies, including Eastman Software and Wang Software.

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Through the widest
range of products and services in the industry, Thomson Financial helps
clients in more than 70 countries make better decisions, be more productive
and achieve superior results.

Stage 1 utilizes the most advanced production available in its state of the
art facility which seats 3500. Having collaborated with the
Company on business opportunities before the acquisition of Steleus
and as an employee over the past six months, I believe the Company is
very well positioned to succeed with its portfolio of next-generation
switching, signaling , and value-added applications. Corporate headquarters are located in Calabasas, CA, with
research and development facilities and sales offices throughout the
world.

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"As a former customer, I've seen the impressive
technology and organizational transformations that the company has undergone
over the past several years; its Thomson ONE technology framework is
incredibly powerful.stage1atcandlewalk ."
Everett has had significant experience as both a CFO and a general
manager working with a variety of multi-national technology companies
during the past 20 years. Prior to Steleus, Everett was vice president of
finance and administration and CFO of Chemfab Corporation, a publicly
traded manufacturer .

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I believe that Thomson Financial is poised to become the
global industry leader and I'm looking forward to being part of the team that
takes us there. He has extensive experience
managing large , global technology teams and his accomplishments span a wide
range of activities -- from standardizing system development processes and
deploying e-business websites to improving operational processes and metrics
that resulted in increased productivity and improved customer service.10 billion, The
Thomson Corporation lists its common shares on the New York and Toronto stock
exchanges (NYSE: TOC; TSX: TOC).

PRESS RELEASE Lonestar and Olivia Newton-John to Perform at Corona's Newest Concert Venue Stage 1 at Candlewalk

"We conduct classes for 400 kids per week and we'd
like to be able to build out 10,000 square feet of unfinished space to
create future class rooms for another 1,200 kids a week.

bill matthew

His deep domain expertise is second to
none. STAGE 1 AT
CANDLEWALK (2331 Kellogg Avenue ) has emerged as Corona's hottest new
stadium seating concert venue for worthy causes and will host two
multi-platinum national acts for its inaugural benefit concerts; country
music mega stars Lonestar (April 17th, 2005), and the renowned star of
music and film, Olivia Newton-John (April 21st , 2005). will benefit Kids Rock Free at The Fender Center for the
Performing Arts in Corona, CA. The facility was designed and built from the
ground up with one purpose in mind -- to present the ultimate audio and
visual experience.
At Steleus, Everett served as executive vice president and CFO and
was responsible for the worldwide finance and administration functions
of the Company.

illustration leland

"
"Joining a world-class organization such as Thomson Financial is a great
opportunity," said Krivoshik .

has been named senior vice president and CFO of Tekelec. Everett joined Tekelec as a result of
Tekelec's acquisition of Steleus in October 2004.

bill saints

tekelec.