While there are other free products out there.. this looks like a pretty decent application at a glance. Check their bandwidth limitations and make sure you're not going to exceed them. This would eliminate needing another socks2http application on the other end, as their servers perform this function for you.
Not sure on the rules here for linking to other boards.. but here is their guide to setting this program up for WoW. I imagine it's a similar setup.
http://www.http-tunnel.com/phpbb2/viewtopic.php?t=171
Here's the guide for setting up Sockscap to make this work:
http://www.http-tunnel.com/phpbb2/viewtopic.php?t=116
They have pretty extensive forums.. check their site. From what I read.. there's gonna be lag problems unless you upgrade to the high bandwidth service. Good luck.