no it doesn't matter. I just use basic pyramid tubes or Forte tubes from performance bike. Just go get one and do it already.

When you are putting your rear wheel back on, make sure that it is aligned in the dropouts. You want it to line up straight with your bike. Also, push it back a little bit as you tighten down your nuts so you can have decent chain tension. Not TOO tight, but you definitely want to push it back a little bit.

I usually tighten down the drive-side axle nut first. Then I do the other side. Then I go back and give them both another twist to make sure they are on good and tight.

This is something you need to know how to do. Don't ever be afraid to work on your bike. It's a very simple machine and EXTREMELY easy to work on.