do not need wlan.
It will be one of these three depending upon the configuration you have.
You could run everest home to find out for sure or just install these three until one works.
Broadcom NetXtreme Gigabit Drivers for Microsoft Windows XP/2000
Intel Gigabit Network Connection Drivers for Microsoft Windows XP
Intel PRO/1000 GT Drivers for All Operating Systems
from here: http://h20000.www2.hp.com/bizsupport...OID=1098#11395
Lets just get the internet running now. We will worry about home network setups later.