Thanks =D.
Anyways, yeah, those are the Telstars, I would think those are 15x8 in back with 4" of backspacing (that's the only backspacing you get with the 15x8's). The 15x10's come with 4 1/2" of backspacing, which I hear works fine - but I have been told a 15x8 is all you need. For the front, if you're just using it for street/strip use, then a 15x6 would work great with a 205/70/15 wheel - that comes with 3 1/2" of backspacing and works fine.