Hello!
Well, to answer your first question, and, as m0d says, "chip in"
I'd recommend OpenMPT. I've been using it for many years now, and I've found it really fast and intuitive. If you're completely new to tracking, it's a good start, because of it's traditional Windows interface. Check out the
Modplug Forums for more info, and to ask specific questions about it.
There are a couple of people from here who are also over there. In fact, once you start to know people, you'll run into them all over the "scene" websites.
Oh, and as m0d says, you'll want to check the other forums for more info on making samples. (But if you just want instrumental sounds, try downloading some free VSTs and sticking them into OpenMPT - it's one of the easiest ways.)
All the best!