Win 2000 madness

Have recently uninstalled and reinstalled TCP/IP Protocol on my laptop O/S Win2k. I can now only connect to my Home network via the hard wired port, and cannot web browse at all. My wireless cards Internal/external are communicating with my access point although they will not connect to my network or to the internet. I have tried to give them a fixed IP and also obtain an IP automatically to no avail.

I have also reinstalled IE6 and FireFox but this doesnt work either. Can someone please help me before i have no hair left at all.