Hey guys im new here just quick question , I can just download and install or do i have to download a proram before i install a theme or something, wouldnt mind the help ok, thanks people.

That was a _really_ quick question. "download and install" and "download a program" is the same thing. No "or" in between.

What exactly do you need help with?

Yes, you need to download and install Litestep to use the themes. But, if you aren't willing to do any reading, I would suggest not doing it.