Problem when posting to any boards

[SumoreZ]

Hello, I've been using YaBB 1.0 SP1 for a little while now, and I just installed YaBBSE to my server.  I'm not upgrading; it's a fresh install.  Anyway, I'm getting the following error:

2: Supplied argument is not a valid MySQL result resource
(/home/sumorez/starconrpg-www/yabbse/Sources/Post.php ln 744)

...whenever someone tries to make a post.  It doesn't matter which board.  The message is still posted; however, the error makes me wonder if something's messed up with the installation.  If you wanna check it out, the board is at:

http://www.starconrpg.com/yabbse/index.php

Thanks in advance, and I really hope someone can fix this... on May 1st, I'll be having a severe influx of people to the site, and the boards not working would not be good!!

[Jeff Lewis]

Check your admin section under Installed mods and Settings and see what the first option says.  Should be topic summary replies or something like that.  make sure there is a number in there.

[SumoreZ]

Yep... it's set to '15'.

[SumoreZ]

Guess that's a 'no', then.