The clamp basicly slides right over the axle/skewer endcaps... it takes me about 30 seconds to put my bike on my trainer, less to take it off so you should have no problem.

Cylops, Kinetic are a couple of trainer types. Do a search on trainers here in TE to find discussions of several types.

If you can't find a riser in your bike shop, try a fat phone book - 2 inches is good.