Q: Ipod touch and iphone cannot connect, as no apple mobile device usb

First the problems was my ipod touch, it did not connect to itunes, my computer or would not charge. I tried everything, uninstalling apple software, restarting apple mobile device manager. I tried to find the apple mobile device usb, and it was just not there. My iphone has been connecting fine in terms of connecting and charging, so when i connected it i found the apple mobile device usb and followed the instructions on this page http://support.apple.com/kb/TS1538#error52 so i went to delete the apple mobile device usb, then when i went to scan for hardwear changes it didnt install back, so now also my iphone cannot connect to itunes, but unlike the ipod touch it does connect to the computer and charges.

Please some one help me!!!! i have been trying to fix it for ages, and and am at my wits end.

thanks