GO easy, I am a treo newbie,

I installed my motorola IHF-1000 car kit. I got the Treo to pair and everything appears ok. however, the Calls never go through the car kit. When I dial from the phone, it goes through the phone speaker, even if I hit speakerphone. Also, when i dial through the kit (it has voice dialing), it still goes through the phone (it does send the number however)..

Any ideas? am I missing something?