Worked for me on Vista 32-bit, tried playing with any of the Compatibility options? If not, reply to the forum thread @ XDA, the guy who posted that thread is the creator of the software, and despite it being 160+ pages long is still actively posting on it.
I'm presuming you are using the v1.5.5 release too, since there's a number of files available to pick from.
Other 64-bit users (though on earlier versions of the app) do mention needing to run it as administrator, but any problems they're reporting aren't stated as being crashes.
Edit: Just seen your additional reply/edit as I hit the Post Reply button. Glad it's working for you now