I just tried QA against 2008. It works. Nominally. I haven't run a full-on regression test or anything.
I'm sorry too. I thought you, the OP, were trying to find ways to automate what sounds like an awful lot of thrash.
"The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
- Theodore Roosevelt
Author of:
SQL Server Execution Plans
SQL Server Query Performance Tuning