This is the public forum -- guest access is read-only but, if you create a new user, you should be able to make posts here. (If you run into trouble posting, I may have mis-configured something -- if the forum appears to broken please send me an email at: email@example.com...)
If you've been invited into the closed beta, please go to:
- User Control Panel --> Usergroups configuration page, and request to join the "best testers" group.
Among other things -- joining that group should give you access to the debugging and testing forum.