how to view/extract bit locker repair tool output .img (50gb)

as stated above, there was a problem that occurred after installig dual boot
and loading ols200, it cause my bitlocker encrypted vista to not be able to
boot, i tried all of the fix solutions, but this wasnt working as this drive
was encrypted and the winload.exe couldnt be read or altered or replaced, as
the bitlocker menu on startup was also lost so rendered me having th eusual
tpm useless.

so i spent hours using the vista bitlocker repair tool, i used it in
conjunction with my recovery password off my usb/tpm, which was all ok and
verified, and took a few hours to output the 50gb vista drive to an equal
size img file onto an external drive.

question is, now i have my supposedly unencrypted folder structure inside
that image file, how do i view/extract it, magiciso, poweriso, all have a 4gb
limit when i try with those, this is 50gb, nero wouldnt read it.

anyone any ideas?

thanks if able.