STOP USING THIS DRIVE!!! unplug it right now! the more you use it the less likley you can recover the files. you will need to scan this drive with data recovery software. i can remotely try and recover this data for you if you would like. you will need to use software such as get data back, or easus data recovery, or linux photorec. but the bottom line is do NOT write anything else to this drive or you will not be able to recover everything you have deleted.
ncc7465, I bought a desktop adapter to USB (Freeagent STAE105) at my local best buy for $20, and I was able to plug the driver to my PC. After that I ran photorec and voila the missing pictures are back. Thanks for your reply.