You can insert a weight of some sort into the head or body of the bait itself to act as a counter balance and correct the rolling problem. People have talked about using "nail weights" but I'm not sure exactly what they are, I have used everything from mojo weights to actual nails or screws in mine. You will just need to experiment a little to find the right amount of weight.

If it's the flat back model you want to try and store it flat on it's back as much as possible, with the tail straight.

Try using the search option on this site and look under "osprey" or "storing swimbaits" for lot's of great info and pics.

Trever-

Edit: Also the review of the osprey has great info too.

http://www.calfishing.com/reviews/swimbaits/osprey_talon_swimbait/index.html