This is a slight ammendment to the awesome guide for getting your itunes to work under XP64 written by Yukichigai here..
I just got my Iphone 3gS & wasn’t suprised to find thit it wouldn’t sync with itunes using this method, however I have found a way to get it to work using similar methods..
what you need is
The latest version of QuickTime (188.8.131.52 at writing time)
Follow Yukichigai’s instructions using the 8.20 version of itunes BUT when you install AppleMobileDeviceSupport64 you’ll get an error saying you need to ‘install XP service pack 2 or newer’ .. what you have to do right click on ‘AppleMobileDeviceSupport64’ file & edit with ORCA.. then goto launch conditions & DELETE the line which refers to ‘service pack 2’
save file, & then install apple mobiledevicesupport64 & itunes64, this time without the ‘install service pack 2 or newer’
sorry this post is so vague, but please comment with questions & i’ll reply, but right now i really wanna play with my iphone.