Wireless networking with sbs

I have a SBS with 2 nic cards and a Cable internet connection. The server is doing DHCP. I now need to add wireless connectivity and am not sure how to proceed. Any ideas will be welcome. I have a netgear Wireless router WGR614 that I would like to connect.
Does the server give IP addresses to the wireless laptops or it this function taken over by the router.
How can I get into the router to turn off its dhcp?