Brake Rotor/Caliper problems....HELP

Yes.

I didn?t know if

No.

They hold the rotor in place during factory assembly, but they almost always break off when you try to loosen them and they're not necessary.

You haven't reached the most fun part of the process yet, which is getting the rotors off the hubs. They will most likely be rusted in place and the best way to remove them is to cut them off. Make a couple of cuts on opposite sides using a hacksaw or reciprocating saw, then split the rotor with a chisel or large screwdriver driven into the saw cuts. Once split, they'll come easily. Clean up the hubs, install the new rotors, reassemble the brakes and you're done.