Gta vice city saves in vista

hi...
i m not able to get the location where my saved games of GTA vice city is.... In XP, the saved files are in my document... But in vista its not so... I was playing vice city on XP platform but then, i changed the OS to vista... I had back up of the saved games but then where to save it? moreover Vista isn't recognising the saved games when I put them in Users documents...