Our old second phBB forum was not being used much by real members and attracting too many spammers, so unforunately, it had to be taken down - just as the first one years ago.
Using scripts to join forums just to get a link (or links) in a profile someone will never use as an active member, is narcissistic behavior and will not be tolerated.
This domain is not a commercial enterprise, it is a gift to the people who come here to find information and community sharing.
This new incarnation will hopefully be less prone to spammers gumming up the discussion process even though it may not be as easy to use as the old one.
It may take awhile to get this up to speed, but with a philiosophy of continuous improvement it will be useful before too long.
We've taken the liberty to build out the rest of this site with some sample content that will help you learn concrete5. Wander around a bit, or just goto the Dashboard > Sitemap and delete the parts you don't want quickly.