The source is not absent, it's at a link right beside the link for the exe file.(posted 9501 days ago)To answer your question about whether or not it can detect moslo or other slowdown type programs the answer is yes, it easily detect it.
As for the question of can you compile from the source I posted and submit scores, the answer is you don't need do compile it. The executable is already there, and it is only the DOS version for now.
You can use MAME TG3 or not. I'm going to leave it as it is for now. There is nothing missing from the source except the encryption. I'll take the issue up with Nicola, but I think this is a reasonable compromise.