I'm having troubles starting with nuBuilder 3 and Form Wizard.

First, I created a first table.
Then, I opened Form Wizard, trying to import it. Form Wizard see this table, but when I try to save and create the new form I get an error about "A Table needs to be chosen"
I tried with Chrome too to discard IE browser incompoatibilty, but same error.
I'm doing the same as http://www.youtube.com/watch?v=BvhjdlzE ... AJK7Eetc4R
There are something I'm doing wrong?