Lol, I just found a fan made fix for SC1 crashing, apparently the crash is from out of memory errors (when the game hits about 1.2GB used + resources it is at about 2GB used).
http://localhost.nl/~johann/Apps/3GB_enabler2.zipOnly works if you running vista or seven x64.
Interestingly enough they fixed this bug in the expansion, so the fuckers expect people to pay for a patch to be able to play the original without it crashing in a good sized skirmish map?