Neenas19:
Have you tried using an Undelete program like one from Fix-It- Utilities, or Norton, in order to recover those files even if they are not in the recycle bin any more?
The longer you wait, and the more I/O activity which occures on the hard drive, the less chance your will have to recover those files completely.
If the Undeleter is not installed, then run it from the CD!