Re-read my first post...#13. In in I mention the Kool Stop tire lever. Once you've got the 1st bead on insert the tube w/a little air in it and the valve stem in the hole. As you begin the process of working the 2nd bead on 'squeeze' the 2 beads together working your way around until you can't got any further by hand. Then while holding the left side of the bead work the Kool Stop from the right towards your left hand. Let air out of the tube as needed. If you need to add a little liquid soap use it sparingly as it can get messy causing the tire to slip out of your hand.
I've mounted 3 sets and have had 5 flats since purchasing my 1st set. 4 of them were 'pinch flats' and were totally my fault...I needed wider rim tape and kept trying to get by w/o changing it. When I 'finally' got new rim tape on all my commuters the pinch flats disappeared. Roadside re-mounting requires METAL tire levers NOT plastic. Pyramid makes a good set...sand down the edges though as they are cheaply made and will scrape the crap out of your rims. They're available at your lbs, usually or you can get them for sure @
http://www.bikepartsusa.com