Changing ID for Sametime integrated login

How can I change the User ID that Notes uses to login to Sametime via the integrated sametime function on Notes 6.5? Our sametime Sametime implimentation uses internet address style names (i.e. myshortname@mycompany.com instead of the regular Notes hierarchical name (i.e. First Last/Org Unit/Company).

I can’t find anyplace to change the User ID… just the password.

Thanks,

Greg

Subject: Notes.ini variable IMUserName=shortname