That was a great help.
This is a great module that will add much needed functionality.
I got the button to work, However I noticed that while loggedin (admin) the manage subscription button was visiable on the product. Think the mange subscription button should only be visable to users who used PayPal.
Off to test in sandbox... Will report back.
Update:
I have Sandbox account setup, and the "subscribe" button shows on my produtct. The first thing I noticed is the "Add to Cart" is removed, eliminating the ability to choose. Solution; create duplicate product- title suffix PayPal, then use the HTML link instructions from README to incorporate the PayPal choice in the main product.
Now I am, I thing ready to attempt an order. I logged out and attempted a PayPal subscription. Fails at Developer.PayPal (Sandbox)... Then I found this link: http://www.ubercart.org/comment/17652/PayPal-Buttons-module
Thanks Detour. You have to register as authenticated user prior to purchase using PayPal Subscription.
Now trying as authenticated user...

Joined: 04/16/2008