I know this is basic stuff but some people just don’t know how to do this.
Okay lets begin:
1) Creating A Thread:
To create a thread click “New Topic” Button.

Then write in whatever with the following boxes.

After that you will be re-directed to your new thread. Now moving to the prart were we are going to edit the post. Click on the edit post below your name; it will pop up a new small window ontop of it and will look like this:

Know change whatever your text was to what you want it to be know.
If you ever think your comment is no more and think I’ll write “Comment Removed” Click the “Delete Post” button in the “Edit Post Menu.” 
Finally,
Removing threads….
This is very easy and very handy just in-case you double-thread. All you have to do is click “Delete” near “Edit” & “Edit” is nere your “Title of the thread” 
If you would like to edit posts please visit this thread.
Cheers,
The official,
ESRazziTutorial user.