Be sure to log out. Particularly if you are logged in as an admin, the following will not work (you will be redirected to weird pages when finishing the resource-add).
Go to content_partner/login
Click on "To begin the registration process, click here,"
Continue filling out the rest of the forms. Everything should work, including being able to see your uploaded icon at the "Attribution Guidelines" stage. Pay attention also to the navigation at the left, which should "open up" when you get to Partnering Steps.