I'm no disk expert, but it sounds like your disk is messed up (technical term) at the master boot record or right where Win is trying to read the loader. Anyways, if part of your drive is readable then booting through Ubuntu would be helpful at least to determine whether you can even read the drive. My drive was not corrupt, just the enclosure died and it was a Linux partition.
Here's a couple of questions:
1. Do you have a USB drive that you can hook up to your computer to pull data off if you get it up and running with the Ubuntu LiveCD?
2. Do you know anyone who can create the CD for you since your PC seems to be kaput?
3. Are you familiar with going in to your computer's BIOS at boot up to change the order of boot up drive specifications?
I will try to help you out if I can. Let me know the parts of my last post that are cryptic to you and I will try and explain.