Ubuntu :: Destroyed Windows Partion With Gpart

OK so i burn a copy of 9.10 to a CD and started up the live desktop, when i got in i started up gpart. i desisted to give 40 GB to ubuntu i put in the numbers and came out with a 39.04 GB empty partion, so i toyed with it to try to get to 40 on the nose. this is the point where i should have walked away while i was ahead but i did't, i kept toying with it till i was almost there, but when i finally got it i realized i still had to finalized the changes so i hit the green check mark and let it run after 10 min's of gpart was reading my entire 180 gb partion which i had windows on. i grew in partion, and i remembered it was much quicker in the past when i partioned from inside the install so foolishly not knowing what i was doing i hit cancel. then my heart stopped when i saw the word unknown where it used to say ntfs. i relised i just destroy my windows install. i started to panic, because my backup of all my files where on another computer and guess what 3 days ago the hard drive died on it and i never got a chance to back up the stuff from this one to somewhere else. then i relised i had a 10 gb factory installed backup partion. so i restarted the machine and got nothing operating system not detected, and when i trying to got to the started up menu i didn't have the option to boot in recovery mode which i was expecting. but i had one last saving grace i upgraded from vista to 7 for free and still have the install disk, so i started up the install disc and selected recovery mode after trying automatic recovery and falling i tried restore from system image, it couldn't find the partion, as a last ditch effort i tryed system restore and as expected failed

i am at my wits end and have no idea what to do next short of wipe the drive and do a clean install, which i relay don't want to do because I'll lose all my data.