I am trying to set this up without much luck. I read your documentation but it's not very clear.
I have created two forms and set one to be fort posts and the other for pages. I then created a page called “edit” and placed [wpuf_edit] in it and published the page. I then went to: plugin Settings > General Options > Edit Page and selected the page I created called “edit”.
when I view a dashboard for pages and click on the edit button for any page, I can see the edit form I set up with no problem.
However, from the posts dashboard, when I click on edit, it just says “I don't know how to edit this post, I don't have the form ID”.
Please check this screenshot for you better understanding – http://postimg.org/image/sx4sx5hz3/. Please assign WPUF form in “Edit page” and “Edit Post” like the screenshot I have provided and let me know the result.