I just upgraded my system from OS X 10.1.5 to 10.2.6. When I try to
start up Eudora (was running version 5.1, but the problem persists after
trying to fix it by upgrading to 5.2), I get the message:

The application Eudora could not be launched because of a shared library
error: "T<eudora-carbon><MIT Kerberos;DESLib;Carbon><MIT

What do I do to make it work again?

Jeanne, hoping I don't have to do a clean install of Jaguar...