[manasecret]

Yeah that looks exactly right. Basically the install will involve taking the case off your computer, pulling out the Broadcom card (the one with the network port) after unscrewing the one screw holding it in, and putting the new one in its place. That's assuming the Broadcom is a PCI card, which it sounds like it is.

After that, you will likely have to install the drivers that come with the card, which is just a matter of putting in the CD that comes with it and clicking install or some such. There's a small chance XP will recognize and use it without installing the drivers, but it's probably a good idea to install them anyway.