Migrate a Hibernate 3.2 project to Hibernate 4 and resolve all build errors

This has to be done by screen-share/telephone or video-conference. You won't have access to any code but will advise me in the upgrade process. I've tried the upgrade and resolved 90% of errors but there's still a few I can't figure out. However, I would like to start the migration from scratch to see if you advise any alternative courses of action along the way or common migration pitfalls to avoid. While I've used both Hibernate 3 and 4 before, this is my first upgrade from 3 to 4 and I do know a lot has changed in terms of where code is located and dependencies. The build environment uses ANT only and no Maven unfortunately, so dependencies will have to be managed manually. Job requires a Hibernate, JSF, IBM WAS7 and LDAP expert.