I've found a solution!!!
I'm a dummy when it comes to my iphone and thank heavens I've found a simple way of backing up my 3GS without having to wait hours and hours and getting nowhere with a message that my connection has been disconnected. Firstly, I exit the backup and sync the rest of my applications i.e. photos, music, etc. Then I open a new USER ADMINSTRATION, download Itunes, once thats done, plug the iphone on the USB, once it tells you to back up click DO NOT BACK UP! Your iphone will back up as new, just like when you first bought the product. Once its finished, unplug your iphone, switch to your original USER ACCOUNT and do backup as normal, it took less than 10 mins to back up! Don't worry about contacts or calender dates, they will still be there and I'm so happy with myself that I could buy you guys a round of drinks!😀 Lastly, my ipod touch 2nd generation didn't do so well, it shall remain with the dinosaurs unfortunately.🙁