Windows 7 Went dual-boot, caused major issues.

[swatsor]

I went dual-boot, and now my Vista partition is somehow really messed up. I'll give as much info as possible on what I think the problem is:

My Windows 7 x64 Partition reads under Disk Management:
"Healthy (Boot, File Page, Crash Dump, Primary Partition)"

My Windows Vista x86 Partition reads:
"Healthy (System, Active, Primary Partition)"

Vista loads desktop, explorer crashes, sits on blank screen with error messages relating to .dll files flashing
Windows 7 works just fine, but it won't install video drivers whatsoever, and will not work with my optical drive.

Any ideas guys???