Nothing obsoletes iiimf-libs, so upgrading with yum from FC 4 fails, as you have old iiimf-libs linked against old SSL.
Ditto iiimf-server.
Well, scim should obsolete iiimf-server already and scim-libs should obsolete iiimf-libs. Does yum not seem those?
Ah, it's x86_64, and there's no multlib scim-libs. So that's breaking the transaction.
Fixed.
Hmmm, I would rather avoid multilib scim-libs for the time being if possible since we haven't multilib'ed all of our IMEngines yet...
Nevermind, after discussing with upstream I worked out how to make multilib gtk immodule work ok with 64bit IMEs. So I drop the objection.