wireless router question

[F083153WM]

First I need to say that I am new to this,
we just got a wireless - G 2.4 LINKSYS Router.
I hooked it up to my pc, problem free. I used an ethernet cable, because I had one and it sits at the same desk as the PC.
The questions I have is this, my son has a new pc and I need to hook his PC up to the router. He has a modem connection on his PC.
Do I need to open his PC up and remove the modem and replace it with the new card that the antenna plugs into ??
Like I said earlier, I am very new to this and don't want to screw
anything up !!

Thanks for your help!

[pcpalct]

If you give us the type and model of the PC, it can help with some more specifics, but my understanding is that this is a desktop machine that needs to be hooked up to wireless. There are 2 ways to go about it:

1) Purchase an external USB Wireless Access Point and hook it up per the manufacturers instructions

and

2) Purchase an internal Wireless G Adapter Card. Then pull out your toolbelt and install it in the machine.

Unless you don't have enough slots or whatnot, I see no reason to remove the modem. But if you're short on available space in the PC, go for it! Of course, option number 1 is always there if you are hesitant about working in the computer itself. :cheesy: