A knoppix CD might be easier as it will automount internal drives
But let's try the following
This will be easier if your using Firefox in Ubuntu, so you can copy/paste some instructions
In Ubuntu, click on PLACES>>COMPUTER
Double click on your drive Windows is installed on
You will probably get the error it couldn't mount
In the error box, click on Details.....
I need the info in the quote box below right after the following:
For example type on the command line:as eg.. it will look like the following
mount -t ntfs-3g /dev/sda1 /media/disk -o force
IF you don't post this back Exactly as you see on your screen, we won't be able to do it properly