There's pics in that thread from a guy that put pieces of rubber band in the back.
I cut squares of masking tape ~.5"x.5" and made two stacks of four squares placed on top of each other. Took off the battery cover and put a stack right by where the tabs on the cover rest on the top of the phone. So basically if you look at the piece of the phone where the camera rests, I put the stacks right after it drops off and goes under the battery cover. Look at the pics on the Crackberry thread and I put the tape where the guy put the two rubber band pieces on the top of the phone.