It's weird. i uninstall reinstall itunes more then once. try all 4 different USB ports. the itouch doesn't even show its connected but it will charge. it doesn't even show up under my computer nor itunes and when i run the diagnostics test in itunes and save the file this is what is says when i open it in notepad. and My Computer IS A ADMIN! im the only user and i have full admin privileges but anyways here is what it says. i hope someone can help me, Thanks!

Microsoft Windows Vista Home Edition Service Pack 1 (Build 6001)
Dell Inc. Latitude D531
iTunes 8.0.1.11
QuickTime 7.5.5
FairPlay 1.0.15
CD Driver 2.0.7.5
CD Driver DLL 2.1.1.1
Apple Mobile Device 2.1.1.13
Bonjour 1.0.5.11 (118.5)

iTunes Serial Number CFDA344F3DF0B22A

Current user is not an administrator.
The current local date and time is 2008-11-20 00:35:45.
iTunes is not running in safe mode.

Video Display Information

ATI Technologies Inc., ATI Radeon X1270

**** External Plug-ins Information ****

No external plug-ins installed.

**** iPod/iPhone Connectivity Tests ****

iPodService 8.0.1.11 is currently running.
iTunesHelper 8.0.1.11 is currently running.
Apple Mobile Device service 2.11.32.0 is currently running.

Universal Serial Bus Controllers:

Standard Enhanced PCI to USB Host Controller. Device is working properly.
Standard OpenHCD USB Host Controller. Device is working properly.
Standard OpenHCD USB Host Controller. Device is working properly.
Standard OpenHCD USB Host Controller. Device is working properly.
Standard OpenHCD USB Host Controller. Device is working properly.
Standard OpenHCD USB Host Controller. Device is working properly.
NEC PCI to USB Open Host Controller

FireWire (IEEE 1394) Host Controllers:

OHCI Compliant IEEE 1394 Host Controller. Device is working properly.

**** iPhone/iPod Touch Sync Tests ****

No iPhone or iPod found.