That probably was not a good move. ;-)

Not sure why you would choose gparted over disk utility but..

Did you run gptsync after using gparted? Not sure it's required, but probably would have been a good idea, even if just to see the ouput from it.

Is the data still there? In other words, when you boot from a live CD or the OS X install disk can you mount the partitions and see your files?