Did you succeed ? I have the same problem. I have 64 bit only and I can not install AVID XPRESS. I can not install either 32 bit dual boot because must be installed before 64 bit.
The compatibility XP 2000 trick doesn't work.
http://www.georgeanton.com/avid_error.JPG
Questions:
1. How to install dual boot XP 32 bit on a system with XP 64 bit already installed. (pass always install older version first issue)
2. How to trick XP 64 to show that it have SP2 so AVID XPRESS PRO HD 5.2.3 installation will work?
3. From where I can get DVCPRO HD quicktime codec for Windows.
Any solutions?