Sprint's Treo Pro Tethering/Use as modem

[garlic]

Hi all...this is my first post.

Got a major decision to make: I am on Sprint's SERO plan. I bought an 800w the other day off of Craigslist (to avoid the 2-year agreement) and now I am noticing that I often hear static on my end during calls. So now I am ready to bite the bullet and put out $200 for the Treo Pro but I am extremely concerned that I will not be able to use the phone as a modem. I am quite happy with the tethering ability on the 800w (after I got it to work by deleting one of the registry values).

I just saw someone else's post about a program, wmwifirouter, that accomplishes the tethering wirelessly. Anyone here that can vouch for this? I don't mean to doubt that person...just want to make sure it will work, and that it will work on SPRINT's Treo Pro.

If you have them, please post links or instructions on how to enable tethering for Sprint's Treo Pro! Thanks!!!