how can I use my phone as a router?

[gdsmssngr2723]

I found the htc wifi router app and the comm manager.
I got both to instal successfully on my phone but when I try to open up the Mobile Wi-Fi Router, it asks me if I want to set up a new internet connection but won't let me click yes or no.
My phone showed a warning message saying that this program was made for an older version of windows and may not display properly.
I am using the htc snap and the windows version is 6.1
If that is the problem how do I downgrade my phone to an older version of windows mobile and if that is not the problem I would like some assistance in knowing what the problem is.
Thank you