Wow. if you've tried it on 3 PCs and it's not working, that's real strange. I'm pretty sure BML doesn't need anything else to be installed, apart from blitz. I don't have visualC or anything like that installed.
I know it's a long shot but try downloading it again and installing it in the root dir of C:.
I know it's a long shot but try downloading it again and installing it in the root dir of C:.