Lumpy,

At the top of the page there is a link called "edit profile". This will allow you to do just that.

It works on cookies so if the site doesn't recognize you as "Lumpy" because you created your profile as "Tom Lumpkin" then you will have to delete your browser cookies and post a message as "Tom Lumpkin". Once you do that the top of the page will say "Edit Profile" instead of "Create Profile"

Does that make sense ??? If you have any trouble let me know.