Go lookup NTPASSWD which help us reset the password on Vista so you can get back in and backup your files.
PS. I can't comment on LinuxMint as it's a distro I've never booted or installed.
Okay so I'm ot a Linux guru... yet lol. Anyways I'm trying to instal LinuxMint which is built off Ubuntu Basicaly we can't get into her account on Vista and she likes Linux more but we can't backup her data so formatings not optional. I just need to know that if you partition the drives free space in the instal will that delete her data?