Vista - adding a printer to my wireless network. xp desktop - vista laptop

hey guys ,

i recently decided it was abt time i linked my vista home premium laptop (32bit) to my desktop XP OS network to add a printer to my wireless home network. Ive scanned through forum after forum and have tried a few things but i reallly have no idea what im doing. The printer is connected via usb to our wireless d-link router that is printing server capable and when i connect it im not even able to print from my desktop. any ideas? ive also tried adding the printer from both my dektop and laptop through the wizards "locally" as ive read but still have had no luck ...yet. Ive tried searching for it from the laptop on the network but it doesnt find it. Ive got a brother HL-2040 so im pretty sure its compatable. If any one can provide me with step by step instructions or any help at all it would be greatly appreciated.

Thanks ..