hey every one...

i had ubuntu installed on my computer via wubi inside my windows 7 OS..after a while something went wrong with the partitions magic stuff and windows 7 got corrupted but ubuntu kept working ...Love ubuntu for that......since i had my stuff backed up and saved in ubuntu...i thought i could make a backup off the root.disk file and reinstall windows and that what i did....but then i installed ubuntu again via wubi but replaced the new root.diskk with the old one that i had backed up.....but now it says it cant find disk :O ...so it takes me to a shell.....i seriously need to get that root disk to work or ima loose really important stuf..

please help me.