Download the driver from the internet while on his PC then install it. You wont have a problem there unless he has dialup. If thats the case, download the driver somewhere else that has broadband and burn it onto a CD.
A+, Network + , HP Certified Tech and MCP
Specs: AMD Phenom II X6 1095T, Asus M477TD, 8GB GSkill Ripjaws DDR3 1600 7-8-7-24 1T, 128GB Crucial M4 SSD, ATi HD4650, W7, 27" HL272 Monitor