T2 mod available in subsim download section, plus an uprated warhead for T1/T2 on rapidshare:
http://rapidshare.de/files/2312866/U...rpedo.rar.html
As to knowing which eel you are editing, well I have already dealt with that. You can't be taught it, you just have to learn it yourself via trial and error. Check the parameters of each eel, e.g. speed, and guess with which torp you are working.