Well, the "rebuild" didn't exactly go as planned, but it appears that we solved the problem anyway. I found that some of the spambots were using a back-door to get in. Basically, the phpbb/drupal integration that gives the forums is supposed to direct all user registration to phpBB's registration system. Spambots found they could register just by adding /user/register to the end of the URL and bypass phpBB entirely. This allowed them just to enter a username and email address and register without even having to use a captcha. The spambots that were using phpBB were able to crack the captcha and get in that way as well.
Once this was discovered, it was just a matter of putting anti-spambot questions in the phpBB registration form, and putting not one, but two captchas in the drupal registration form. In addition, we've added a hidden "Website" field to the drupal registration form only spambots can fill. If that field is ever filled, we know it is a spambot that is registering. I've carefully monitored HWG ever since it went back online, and so far it looks like this has pretty much resolved the spambot problem, even though I can't actually disable the registration back-door due to integration problems that could result.
(Forgive my technical rambling
)
As far as the chat, I do apologize for the inconvenience with its downtime. Finding good chat hosting is definitely not an easy thing to do (Suzaku could tell you this as well) as many hosts do not want chats to be run on their servers. Even if they allow chats, they tend to put a huge load on the server that can slow down everything else on them. (Suzaku could tell you this also) Either way, having the chat hosting is not a guarantee, but we are working very hard to do our best at keeping hosting for it.