Changing forums for old thread?

I have an ongoing project thread that's years old, but when I posted an update yesterday, I noticed that it's in the "Traditional Discussions and Happenings" forum, when it should be in the "Traditionally Styled Hot Rods, Customs, and Production Cars" forum. Obviously, the thread was started when there was only one board; how can I move it where it belongs? The thread in question:

http://www.jalopyjournal.com/forum/showthread.php?t=279517

 

Thank you!