Ignore the riff-raff...
Sure you can change any linux distro to make it your own. That pretty much defines what's so great about gnu/linux! That said, you're going to have to learn how your distro works to have any shot at rolling your own customization of it. This forum is not the place to see that sort of help I am afraid.
I don't know anything about your distro of choice, backtrack, so I would advise to, at the very least, read and understand their documentation. Only a handful of people, usually savants, intuitively know and understand their topic of choice. Everyone else learns it the hard way, through study and effort. Read, learn, try, fail, try harder, fail some more, keep trying, succeed.
All that said, judging from my visit to their website the biggest piece of advice I can give you is, "don't be an idiot". Nuf said.