GarageBand Loops Don't loop! And don't sync!

I have garageband on my iMac intel and I got version 1.1.0 or 1.0.1 on my clamshell, I copied the loops of of the intel iMac quickly from application support/ garageband/ loops or something like that and quickly burned the .caf files to a cd-r I then realized the loop filetype don't work with early versions of Garageband so i played one and they don't loop with quicktime because there is a minor delay or the loop is a little cut off at the end. I thought it was quicktime and downloaded a free version of Switch to convert them to aif and wav format. When I tried that I opened Garageband and sent them to the loop index I put two on the mixboard and for the first part of the loop playing they worked then they got out of sync when one loop part was done and made longer. Help me! It sounds like crap! And they don't work!