Here is the article from BOL about a side by side install.

http://msdn2.microsoft.com/en-us/library/ms143520.aspx

I would agree with with Brandie. This sounds more like a replication issue\failure in Active Directory more than an issue with SSMS. Check this link for a list of errors...

The limitations of Access can also be over come by using linked tables and placing each table in it's own database. However, this tends to get messy managing a different...

Spicy beef jerky is the king of all snacks!

The migration assistant is fairly handy as well.

http://www.microsoft.com/sql/solutions/migration/access/default.mspx

Currently have 2000 and 2005 client tools installed on XP SP2 on the same partition with no issues.