As was posted in another thread, you can set your options in User CP to show all threads and you will see your posts. I'm not sure what the system is set to right now, but all users are set, by default, to use the system default. You can over ride it on your own.
As for editing the title, I'm not sure about that, but it seems that there was a time limit that you had to wait before you could do that. I could be wrong.
Darrin