Kam,
At the risk of sounding condescending, are you breaking the bead all the way ariound the tire before you try to insert the Quik-Stik? I realize some rims have little or no drop center...which will limit how much "give" you will get out of moving the bead to the center. Let me just say that the Quik Stik has always worked for me when I've used it, whenever I can't go tool-less, that is!
YMMV