I spent a week on it. Today I spoke with three more people and got the following information:
Sprint called re my trouble ticket on Navigation. The guy said that it's not supported on the treo now.
Called customer service and they said it should work. Just download it by going to your account, search nav and download it. The response came back when I tried that the app was not supported at this time. If you look at the link you can see it won't work as it feeds to an html file not an app.
Technical support says it's not part of any package, it's a 3rd party vendor.
I can't get anyone in Sprint in any department that know the "right" answer. So I called telenav and went to their website. They have a lot of info for Navigation on the 700p. It does work with Sprint. What I have done is download the app,
http://ota.telenav.com/ota/sn and registered through telenav for the product. They are sending the gps receiver ($100). I have one year to return it and the cost is $9.99/month (cancel any time).
This way I can see if it even works. I may end up with the little Garmin Nuvi device instead. What a pain it has been dealing with Sprint. No one knows what's going on. You can't get a straight answer. I was on hold for 30 minutes and then just had an email read to me that clarified nothing. I have the Power Vision Ultimate. It's ultimately been a pain!