How do I install new races?

I agree with Ownz, nobody is going to hold your hand and walk you thru all the steps.

You need to read, read, and read.   We all had to do this exact same thing.  If you want it bad enough, you'll learn to read and do research.

Everything has already been laid out in a step by step method that isn't hard to understand.  Its spread all throughout this server and in sourcemod.  There is so much resource ready, that it is hard to understand why you need so much help...when all you have to do is read, test, and learn.

Trial and Error is the best way to learn something.