where are parallels/windows files stored?

HELP. i have a macbook w/ OS X 10.5.4 partitioned w/ parallels to run windows. my brother recently upgraded to snow leopard, but i couldn't open parallels, so i re-installed my OS X 10.5.4 and took all my files to "Previous System" folder. Still couldn't open parallels, reinstalled parallels (w/out partitioning the hd) and am able to open parallels/windows. but can't find my files! Does anyone know if my files are lost?

Search your drive for a .pvm file. Your Windows installation will appear like one huge file.

didn't find anything, does this mean all my files (in windows) are lost?

If you lost your .pvm file I am pretty sure your Windows installation via Parallels is gone. It is hard to say what happened to it. Did you back anything up?

not since last october.
thanks for your help, i just wanted to confirm, so i can re-start from my october back-up files.