Ok, if you're 100% sure everything is gone, and not in the recycle bin, you can search the net for a program called "Restoration". It is freeware, and searches your hard drives for any deleted files that haven't been securely erased. Alternatively you can use a boot disk (Such as "Hiren" boot disk) which have various file recovery tools. If you cannot find this program, let me know and I'll send it to you.