TinCow has uploaded it :

https://forums.totalwar.org/vb/showp...&postcount=372

He has been running it without ill effects and I don't believe it can corrupt the savegame. It does not depend on RTR itself, as far as I can tell. Go ahead and install it with my blessing.
Most of your questions about the 4TPY mod are answered in the FAQ.

FLYdude, excellent writeup. Seems like I'm in trouble again, the Thracians have some good units.