Hi Eyeg;
I'm not sure what you mean by your post.
If you mean you want to delete the post. Open your post:
"To delete a post, select the Remove button followed by OK from the Remove this message? box that will appear. Some forums may also allow you to remove topics or polls that you start, but the buttons for these are usually at the bottom of the page. It is not possible for a user to remove their first post in a new thread if replies have been posted."
You will see the Remove button in the top right corner of your post.