Sathiroth, welcome to the forum. Try this file I attached at the bottom,If you don't have Cablenut 4.08 I've attached that also. Install the Cablenut 4.08 first then open the file with your name on it "save it to registry" reboot your computer for the settings to work.
So I was right when I said the NIC card. You can get a new one almost any where. I usually get my stuff at newegg. Yes, you can do it yourself.
http://www.newegg.com/Product/ProductList.asp?Brand=1015&N=50001015&Submit=ENE&Manufactory=1015&Description=nnic+card&Ntk=all
No! Kamil234 did it for me. I think Kamil did a great job myself. I just sent a PM with what I wanted and to use a little imagination and presto this is what I got. Thanks again Kamil.