PowerPC :: 12" 1.33 IBook Not Getting Along With ITouch?

I have a problem here. I posted it in the 'iTouch' forum ,but no one seems to be able to figure out the problem. Before I schedule an appt., I figured I would give it one more shot.

I, or my parents, have a 12" iBook that they are trying to sync their iTouch too. It has worked in the past but as of now it will not recognize it. It will charge it but not recognize it on the desktop, finder, or in iTunes. However, if I put my iPod, iPhone, external HD on the iBook it shows up. That, to me tells me that the USB ports are good on the iBook.

Next, the iTouch shows up fine on my MBP as soon as it is plugged in.

Both the iBook and the MBP are running the the lastest version of leopard (10.5.2?) and the iTouch is at the latest as well (2.2.1.) I can't remember the numbers exactly. Im on a windows and none of this is sitting in front of me.