Tether Treo Pro to iPod Touch

[Syring]

I am trying to tether my Treo Pro to my iPod via Wifi. I've installed WiFiRouter, and it looks like it should work fine, but the problem is the ForceCellConnection reg key. At least I think thats the issue. I cannot delete the key, nor edit it where it saves. I edit it or delete it and hit refresh and it reappears.
I've tried a BlueTooth connection, but my iPod won't find the Treo. The iPod will find the WiFiRouter wireless network, but when I connect, I don't have internet.
Any thoughts?

I do realize that I should just get an iPhone, but I can't afford one now since the plan is about $120 more per month than what I pay with Sprint.

Thanks in advance!