Bluetooth Motorola s9 with iphone 3g

Hi maybe this has been asked before, but I cannot find anything specific to my issue.
First off I have Software version 3.1.2 with the iphone 3g. I have a motorola s9 headset and for the life of me I cannot get my iphone to even find the device. I have charged the headset for over 2 hours and it just says searching under my bluetooth settings in my iphone. My headset is blinking blue so I believe it working. My co-worker has a similar motorola headset and it works on his iphone 3g. Any suggestions would be greatly appreciated.
iPhone OS 3.1.2