Developer: Ubisoft Montpellier
Release Date (US): November 19, 2003
GOG Version (Windows 7): shell:local appdata\VirtualStore\Program Files\Ubisoft\Beyond Good & Evil\
Steam Version: <Steam Installation Directory>\Steam\steamapps\common\Beyond Good and Evil\
As well as the obvious *.sav file, you need to copy 'sally.idx'
Then you should be good to go!