Someone asked why they couldn't setup a signature, did they have to join Club FTE.
With the help of Rich, the answer is "you have to have 25 posts or more and then you can setup and edit your sig in you User CP. Be sure to check the box to make it visible in your posts.
Rich provided this link where the webmaster discusses this very same matter.
SITE ANNOUNCEMENTS,
Change in Signature Policy
See members helping members, it's that easy.