According to
this thread you can connect your laptop to a normal desktop with a USB cable and see what is on it (provided the hard drive hasn't failed, but you would probably get "Hard Disk Fail" before "Operating System Not Found" if that were the case).
Edit: Whoops, I should have said that you can put the HD in a USB enclosure.
Another Edit: Also, if you have a Windows XP disk, boot from that and select "Recovery Console". From there enter the "FIXBOOT" command and see if it can fix your boot sector files...