I rooted my phone in August and it worked fine until about 5 days ago when the wifi stopped working! I'm using the wifi tether v3_1 beta5 and it tried to update and from that point on it stopped. I uninstalled and reinstalled it again and no luck. Where I live this is the only internet I have and it is essential I get it back up and running. HELP!! PLEASE!! These are the steps I used to root my phone.
http://androidforums.com/search.php?searchid=5746067
http://androidforums.com/search.php?searchid=5746067