I have a MOSS publishing portal with anonymouse enable that is created with a
variation source of english (en-us) and have created additional sites in french
(fr-fr) so this is working.

Now, that said, there are delegate controls that access a product database -
within this, the client has requested that a user (not a sharepoint user - to
sharepoint this user is Anonymous) be able to set his default language - so this
language is set in the database - I need to have a way to set the corresponding
variation in Sharepoint so the user can be redirected to the correct page that
reflects the change of language in the variation in the redirect url.

I assume I need to change the variation label. How can I change the variation
label within MOSS? If this is not the correct location/information to change,
what do I need to change in MOSS?