There should be a delete thread button or option. There is also an option to pin important threads to the top of the forum. I thought I'd throw that in... when I owned my CC it took me about a year to figure that one out!
Enjoy your CC's... when you feel like retiring I recommend checking out East Coast CC. Maxwere does an amazing job as club owner offering a huge array of events, etc. If you get tired I recommend retiring to East Coast... bring some of your players along and relax. Its much easier :-)