amazing

Hi, After I've updated my iPhone to iOS5, I've lost all my photos and I have no Backup . Recuva is the only hope for me. But when at startup, I ask to search on Floppy disk or Iphone, it tells me that no floppy disk nor iPhone is detected. However it is well detected by Windows and itunes. I work under W7. Any help would help me a lot!! Thank you