http://wirsz.phpwebhosting.com/LLDBB2/search.php
type in "screen".
change forum to New User Q&A.
or you could just scroll down the page, there are at least three threads on how to take and post screenshots.
You can post new topics in this forum You can reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum