has no obvious way to join, unless you want to pay. They *say* they do, but once you get to the join page, there's only visa/mastercard links. Scraping the page is no help. The links just... yeah. So I guessed a couple of URLs. Really, a small handful. They're using php modules, so the "join/Register" page everything pointed to was "modules.php?name=Welcome"; the for-pay page was name=Register. I tried name=Join, which complained that that module wasn't active. But name=Weclome (yes, that was a typo) wasn't active either. So it probably wasn't an installed module or anything like that.
"user menu" pointed to name=Your_Account. "lost password" pointed to name=Your_Account&op=pass_lost. So I tried name=Your_Account&op=join, which didn't do anything special (but didn't break; interesting...) and then name=Your_Account&op=new_user
blingblingbling! the form. and it worked, too. :)
sorry, I think that's my feelgood for the day.