It makes no difference what side they go on.

As for the piston caliper tool, all you have to do it push the piston back in the caliper by hand or with a c-clamp so that the caliper will slide over the new rotor.

This page maybe helpful, it's for a mustang, but it will give you a general idea.

click here

BTW, how do they look? I'm expecting mine this week as well.