The proper one that is working for most ppl can be found here (yes it is the black antenna blue background):
http://forum.xda-developers.com/showthread.php?t=538874
Look @ post #13 on page 2 of the thread if you want the cab that installs a Program Shortcut in your start menu.
I tested it out last night on my XP Netbook & it worked flawlessly.
Only thing is the TP2's screen stays lit the entire time.
So if you turn the screen off, the Wifi will disconnect.
Back on topic:
There is another thread on here today that addresses the browser connection issue.
For some of you who can see & connect to this available 'wifi router' but cannot get IE browser to connect...it suggests it has to do with the caching of the 'old' settings.
May want to check that out.