I'm not sure but I think the 64Bit game is 32 bit and the 34 is 64 the reason for my saying that is my computer is 64 but the 64Bit Burglary wont launch but the 32 bit works maybe there miss marked ?
I just checked and they appear to be correctly labeled. Either way, a 64 bit system should be able to run both versions. Not sure what the issue is but I'd guess something went wrong during the download.