Well, my guess here is that there are some file tipes that it can recover and some that it can't.
It runs fully in windows. After 3 hours, for a 40GB HD a pretty good time I think, it recovers about 20 or so file tipes, including .jpg's .gif's .exe' s .zip's etc... but not AVI's or MP3's, only .wav's. Maybe between the wav's there are some that are MP3 but I don't think so.
It arranges all files of the same type in a single directory for each one, so you have a lot of files of the same type with name's so descriptive as "file001.jpg", making the process of identifing them really painfull.
Anyway, my buddies here at work, told me that it was imposible to recover anything from a HD without it's original partition or and image, so I think it was a really good program in spite of those facts, but helpfull only if you want to only recover some important files, not everything lost, unless you want to expend week's in a tedious work.
Anyway thanks a lot for your help!, and I'm going to buy some good image program right away, which one is best for XP?