@Hans CrashDive
Welcome aboard mate, you couldn't find a better, more helpful bunch of cohorts anywhere on the net mate
Have to say well done for ordering your copy from subsim
Regarding the UAC thing with Vista, not sure if you know, but you can always turn it off. I'm running on Win7 64 now, but succesfully ran SH3 on Vista64 bit for quite some time.
Hope your package arrives before you have to ship out mate.
Best regards.
Fubar2Niner