How Do I get my Printer working through Router

I have a tower Machine connected to a Netgear WGR614 v7 Wireless router using a RJ45 cable.
Attached to the Tower through a Parallel port I have my printer HP DeskJet. I have a new Laptop that is using the wireless side of the router and I want to be able to print using the Printer. (Both Machines access the internet fine)
Question. How do I set my machines up to be able to print?