Is it possible to recover my pictures?

I know this is an old post, but for others that read this, it's no problem at all to get deleted photos and videos back. Please see this post for several other free software options that you can download:

http://camerarepair.blogspot.com/2007/12/recovering-those-accidentally-lost.html

Any data recovery tool that can reach the card as a drive
(in a reader, for example) should be able to recover the picture data.
There are also specialized photo recovery tools such as PhotoRescue(http://www.datarescue.com/).

OS-level format and recovery tools not specifically intended for photo
media will likely mess the card up for digicam use, so be sure you have(or buy) a reader that includes the SMPREP.EXE reformatting utility.

some links to other recovery programs: http://www.mediarecover.com/mediarecover...
http://www.lc-tech.com/ProductDemo/PRC-d...

this one should be free:
http://users.pandora.be/pchelpdesk/digit...

Good luck!

Bad copy pro is an excellent program for recovery. It even recovers after accidental format.