Work with it and eventually you'll get how to use it...that's how i did it . Or you could google a guide on how to apply the theme using tuneup. Should be some lying around but it really isn't necessary if you fiddle around with it some more. If you really can't figure it out, i can help u out. Send me a picture of the finished product if you figure it out.

i found a nice theme i would like to use, but this program is pretty confusing

and please do give me some nice themes, do i need to have a program aswell?

o no, the atom rig is for internet browsing , sorry for mislead