Nicole I took your post and made you a new thread located here:
http://www.tortoiseforum.org/thread-69936.html
To make a new thread, instead of coming under a single thread's area (like this one called "help with making a thread", stay one step further out where the section shows many threads. The same button used on this single thread that says "new reply", is on the zone with many threads saying "New Topic". You use that button.