Okay, to make a long story short, I wanted to move a few certain files from my hard drive to my external hard drive without having to reinstall XP (since it wasn't installed, and my hard drive letters were messed up, and I wanted to just start afresh), so I installed UBCD, booted from the CD, and went through some of the tools (hard drive partitioning tools), but didn't come up with anything successful. I don't know what I did (but I must have done something), because now my laptop computer can't boot up from anything but the floppy hard drive. In the BIOS, it is showing only the floppy drive (a few times) under the boot options - the CD-ROM drive and the hard drive has disappeared, and I have no clue what to do. My laptop is essentially dead.
Please help me out. Thank you - I appreciate any help.

But, ASAP if possible.
Andrew