Creative Zen Touch firmware problem
Before preceding, goto control panel, add/remove programs (vista equivalent) select windows media player and uninstall note the response it gives you. If it is going to allow you to uninstall OR downgrade windows media player to version 9 then keep going. If not, then find another computer that you've never used the player on try upgrading firmware there, make SURE it's got windows media player 9 by downgrading it in add/remove programs.
Now for the fun stuff:
Sounds like the same problem I've resolved several times in the past on here.
1. Plug in the device.
2. Goto device manager in control panel and remove the device drivers.
3. Reboot if it asks you to, make sure to unplug the device.
4. Goto device manager again, remove the USB hubs.
5. Don't reboot.
6. Goto control panel, add remove software or equivalent for windows vista ultimate.
7. Select creative labs, and uninstall any and every zen related software.
8. Don't reboot.
9. Goto my computer, find the creative directory located on your main hard drive at \program files\creative. Deleted it completely.
10. Select windows media player select uninstall, or downgrade accordingly.
11. Make sure your zen touch is not plugged in and reboot your system.
12. After system loads, plug in the device and run the firmware software again.
And if you wish, reinstall windows media player 10 and the creative software (which you don't need at all with vista) all the other drivers should reinstall themselves.
BTW it's a hell of alot easier to just use another CPU if you have access to one, I've done it both ways and it saves alot of time.