You can swap the old drive into the case with the new motherboard; however, you will have to reinstall your Operating System. As soon as XP senses new hardware and a different configuration it will bulk and ask you to reinstall the OS. I would not recommend this action as you will reinstall over old software, and damage the current installation and files that you may want to keep. 

 

If you buy an x64 motherboard, you can still install 32 bit software as long as you install the XP x86 OS. If you install the x64 OS, Vue will try to automatically install the version meant for the current OS. 

 

Some 32 bit software will install on XP 64 without trouble, Vue is one of those, other software programs will not work on the x64. 

 

I just install the Infinite PLE on my Vista x64, and it installed the 64 bit version automatically. I have only had the PLE on the drive for a couple of minutes and loaded one scene but it loaded and ran okay, better than my Esprit 32 bit, which is constantly crashing.

 

You definitely want to go 64 bit versus 32 bit if using Vue Inf. The problem with an upgrade, is some of the software and hardware that worked in your 32 bit system may no longer work in the 64 bit system. Do your research and make your choices carefully here, have all of the software, hardware, and drivers for the OS you will run, so you do not run into hassles after installation.

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