It installs fine, however i have to login manually.
As for the commented out code, those are commented out lines from the 6.5 integration; do NOT uncomment them, they will not work, and it can make things not work at all.
As for auto logins, that'd use a cookie, you'll have to ask them at their site about using the ubb cookies to auto login.
I recommend making any requests on the ubb7 discussion on their site, such as having to use the display name vs login name, and any bugs you find.