Can't resize bottom partition?

[Classick]

I had installed Lion GM over my Snow Leopard, dumb I know, and got tired of the glitches so I installed SL on a new partition, transferred everything and erased the original partition. Now I can't resize the new partition.

http://i213.photobucket.com/albums/cc238/Classick206/Screenshot2011-07-10at101326PM.png

Basically, how do I add the top/greyed out partition (empty space) to the bottom one (my Snow Leopard install)?

Thanks.

 

[Detrius]

You can't just move the beginning of the partition, as certain things have to be at the front. You can move all of your data with iPartition. It would be safer, though, to back up, wipe the drive, and then restore from backup.