I'm creating a whole forum on how to do alot of stuff in PhpBB3, from simply adding smilies to doing complex script edits, you'll find it all.
I've only just started this site, so it's kind of small. If you have any knowledge of PhpBB3 and would like to help me out, give me a PM or reply here.
Thanks.

http://n-tech.ismywebsite.com/phpbb3/

Regards,
Alz