Have searched high and low...

[ryanhailey]

That's a stumper for me.i can also go to those sites with no problems.

 

[azdrifter]

It seems like you already have tethering working, so as far as the sites not being able to connect you might have to un-install and then re-install tethering and make sure that you enable wifi-encryption this will tell the site that there is protection from your connection.
I hope this works for you I had the same problem with my Incredible and this worked for that phone,with my X2 it worked flawlessly and I have had no problems with wifi tethering I got mine from the google code site here Downloads - android-wifi-tether - Wireless Tether for Root Users - Google Project Hosting