This software looks nice, but vbulletin is a much better, more feature rich and has tons of plug ins....
Please keep the real forum software vbulletin. The search feature alone in vbulletin is worth having over this software....
And if you guys like spell checkers, download Firefox 2.0 :p (or download a plugin for vbulletin that does it)
Oh, and if you like this look better, you can modify vbulletin to look any way you want it. Everything is configurable and modifiable... At Calguns.net you're just using a standard vanilla skin. Other skins can be created...
If you want to see how different vbulletin can be configured, check out another forum I frequent daily at:
http://www.jcfonline.com