Connecting computer to internet via router and ethernet cable help

Ok, so I have one computer and printer connected via ethernet cables to a wireless router which connects another computer wirelessly via usb adapter.

Now I have another computer that I want to connect to the same internet connection on another port in the router, however when I connect the cable from the third computer and the router nothing happens and I still cannot connect. The thir computer is using windows xp home and the other two are using windows xp professional.

Please help. I've tried creating a new network connection, but that did not work

Hello, Icomed. Let's see if we can't get this resolved.

On the computer u can't connect to, please click start, then run, & in the box that opens, type:
ipconfig /all > ip1.txt

Following that, please paste the contents of ip1.txt in your reply to me.

Also, please go to control panel > system, click on the hardware tab then click device manager, click the + sign by network adapters, & make certain there's no red x or yellow ! by your ethernet adapter.

Looking 4ward 2 your reply.
Jackie M
I T E 1 Cisco Networking Academy Instructor

Well i went through the controll panel and it shows that I do not have the ethernet controller driver installed. My desktop is a hp compaq d530 sff and I cannot seem to be able to find the driver anywhere. Please help.