Ive got a new bb8800 but i have not got any cds to install anything in order for it to work when i plug it into my usb.
everytime i plug it is this message apperas ''USB charging current is not sufficient. Verify that your handheld is connected to a powered USB charging source and that the proper USB driver is installed."

What do i need to do?

By new you must mean new to you, as I think the 8800 has been out of production for a while.

Download the latest version of "Desktop Manager" from the RIM BlackBerry support site (Smartphones, Cell Phones & Smart Phones at BlackBerry.com). That will install both the drivers required to charge the BB, and software you will need to sync to your desktop, backup/restore and load and update software.

Good luck.