Connect a Dell V305 Printer to a wireless network without connecting to a computer

I have a new Dell V305 Printer which has Wi-Fi capabilities. We have a large family with two Vista 32bit laptops and two Windows XP laptops. I am wondering if it is possible to connect the printer directly to the wireless network that is set up. There is no ethernet port on the printer so it cannot be plugged into the router, which is up to date. We no longer have a desktop to connect to the printer which would make this much easier.
I have tried searching for the printer with on with my Vista laptop, but it doesnt show up. I know there must be some way to set this up so all of the laptops in the house can wirelessly print a document. Please Help!