No problem Andrew, it takes time 🙂
We have no deleting options in forum.
So, lets see, how to edit own thread (it works with your own thread only)
Click EDIT on first post (EDIT, upper right up) - now you should be in edit mode.
There is a frame under "Topic Title (Maximum Length: 80)" - you can edit yout topic title here
However, the link name in forum will be keep "old"
Edit the message - that should be clear.
Under "Forum" you can change the place via drop down menu.
Optionally: e-mail and lognotifications
After any change - click SUBMIT below. Done !
Hope it helps.