1. Unless there is a separate URL for PT19, the signature banners are for our PT20 teams.
2. Some mobile clients like Tapatalk don't show them unless you go into webview so don't assume that everyone can always see them.
3. Here is the discussion that explains how to add the URL as an image to your forum signature:
http://www.ootpdevelopments.com/boar...d.php?t=302756
Essentially, edit your forum signature and click the insert image button to add this URL:
https://challenge.ootpdevelopments.c...r_username.jpg