Updates:

I've just updated the forum (once again. Hopefully it worked this time!!) to disallow guest posting. So, I'm sorry, but if you want to post on there then you'll have to join. I've also moved the forum to http://www.nsyncery.com/cgi-bin/forum/YaBB.pl to try and help stop people spamming it. I haven't had the chance to update all the links to the forum's new address yet, so if you get an error message, I'm sorry. Please type the new address into your browser if you wish to visit the forum. I'm hoping to be able to have a big update ready for this site soon so hopefully the forum being moved won't be an inconvenience for very long. Until then, thanks for your patience while I get it all sorted out.
EDIT: I could almost cry! The spammers have found the new forum address already so I've changed it again. This time I'm not going to post the new URL. Most of the links to the forum are working though, and I'll work to try and get the ones that aren't working to be working ASAP.