WIFI adapter problem

[private_click]

i just bought a new wifi card and i'm trying to set my desktop as a router for my psp.the wifi card is a ipTIME ZC-WL0101.
i found a guide about how to do it:
http://www.microsoft.com/windowsxp/using/networking/expert/bowman_02april08.mspx
i did everything it's said there but it doesn't work.after i create the new connection, the desktop detects it, but when i try to connect to it it sais "waiting for connection" for about one minute then it disappear.
after that in the list, it appears that the computer connected to the AP, but in fact i get a big red X right near the Wireless network connection.
i also included a screen:http://img401.imageshack.us/img401/8003/networklistso7.png

i also tried to set the ip in network connection properties (http://img401.imageshack.us/img401/3043/iplistrt0.png) but nothing works.when i type the command "ipconfig /all" in cmd i get "Media disconnected" for the wifi adapter (http://img407.imageshack.us/img407/9757/ipconfiggy5.png).

am i doing something wrong? or it's a hardware failure?
should i go back to the shop an replace it?
thanks in advance.

[mccoffee]

I say try xp sp3 out it does have alot fixes for wireless it's not a final version yet ,so do a back up ,or a restore point first just in case.

http://technet.microsoft.com/en-us/windowsxp/0a5b9b10-17e3-40d9-8d3c-0077c953a761.aspx


it's very close to be one. http://www.speedguide.net/ also try adding manual ips for the computers. Check to see if there is any driver updates for your nic.