Only a Moderator can delete a post, however, you can edit your own posts. There is an edit function to the bottom right of each post... You can make changes to the post or even ask a moderator to delete it.
Go to the bottom of the main forum page where it says "contact management" and go to "reported threads" and paste in your URL.
Editing sales threads can be problematic, and it is usually best to leave sales threads unedited so as to be beyond reproach.
Moved to NP Info/Suggestions.
-Allan