How do you share a printer through a wireless connection?

My computer is using Windows XP and the laptop is using Vista. Both computers are connected to the internet through a router, the PC by ethernet and the Laptop by wireless. The printer is connected to the Laptop and I want the PC to be able to use the printer through the wireless connection.How do you do this? So far I've had no luck.I've been able to share files between computers by crossover cable but wireless doesn't work.

[Isbella]

On the laptop, share the printer (right-click on the printer's icon - Sharing). Make sure you have printer sharing turned on for that internet connection.

On the desktop, install a new printer. Tell the wizard it's an internet printer. Browse for it. Continue the wizard. (You may need the CD that came with the printer so that the desktop can install the printer driver.)