i attached that to the mobo where it says on the manual (even so, those usb connectors on the mobo talk about connecting the extra usb I got for pci so I dont know if that can be a problem).
I'm not sure I follow you.
I did say NOT TO TOUCH anything inside the system but if the USB connector is a single block connector with several wires going into it (as opposed to multiple connectors, each with a single wire) then you're probably safe enough provided you haven't just connected it straight to the 1394 (firewire) header!
(I'm serious about the firewire by the way, the usb and firewire headers are identical but NEVER mix them up!)
The PCI bracket USB ports that came with the motherboard, are an alternative to the front USB ports. ie you can connect one or the other.
The motherboard manufacturer provides the PCI bracket ones in case your PC case doesn't have front panel USB.
The next thing you need to do, assuming you have connected the USB connectors correctly, (please double check you haven't used the 1394 headers on the board by mistake)is to make sure that all usb controllers are enabled in the bios.
If you have the mobo manual there, you should be able to look the instructions up for this in the manual. If you have any problems with it, let me know & I'll talk you through it.