Jesus, what horrible responses. Quote from his original post:
I am not using this for gaming and cannot overclock with my current MOBO.
He is not using it for gaming but you guys recommend upgrading the gfx card instead
Anyways, your mobo is socket 478, so the inventory is a little slimmer than for the newer socket 775. Here is the socket 478 3.2Ghz P4 at newegg.
It is a Prescott core, but I wouldn't worry about that, especially if your not OC'ing. It will run at stock speeds just fine with the stock HSF.
The Northwoods are an older core and you'll have a hard time finding one other than maybe eBay.