Windows 7: wireless network printer connection problem

I have an HP desktop running Windows XP Pro and I network to an HP notebook through a wireless router.

I recently purchased a Gateway Laptop with windows 7 Home Premium. It found my wireless router immediately and I was able to get on the net. It also found my HP desktop so I could share files.

The problem I am having is with my network printer. It is an older epson stylus photo r320. Epson says that windows 7 has a driver for this printer and if I plug the printer directly into the laptop using the usb connection wiindows 7 finds the printer no problem. If I try and have windows 7 locate the printer on the network it can't find it.

Has anyone had or solved this problem.

Beeper

Silly Question but Have you Shared it on the XP Pro. Also XP Pro may not have the correct Drivers for the printer. Also go here Control Panel\All Control Panel Items\Devices and Printers and see if its there, I just went there and a printer thats installed on a Laptop that is here for a few days Just turned up.

Yes I have enabled printer sharing on the XP desktop. I went on the epson site and downloaded the windows 7 driver but it won't open up on my XP system. It tells me that I don't have the correct operating system. My daughter has vista home on her laptop and she has no problem printing from my printer.

Again when I connect my printer to the laptop with the usb cable it finds the correct drivers and works fine. It's only on the wireless network that I am having a problem.