Hi Joseph, the problem is with Address book download, I don´t know with it´s ask password for download address book when the user goes to OCS2007 with Communicator 2005.
Enhaced presence does not work with Communicator 2005 and we cannot rollbak to LCS 2005 if we have some problem in our deploy.
With Communicator 2007 the account works great and download de Address Book without problem.
Thanks for help-me and when I discover the solution I will post here.