Wireless driver for Vostro 1700

My M.I.L. purchased a Vostro 1700 model PP22X. It came with Vista Home. She found out some of her business programs do not run on Vista. She has purchased XP Pro and I have installed it and updated the XP drivers from the Dell website.

 

The only driver that does not install is the wireless driver. I have tried to install it from the Dell website and the Windows update is recognizing that it need to be installed and downloads it but the wireless never shows up.

 

Any ideas?