Thunderwalker Revival Project has a brand new site with lots of cool stuff.

http://twctf.org

Some of the highlights are:

-http://www.twctf.com/drupal/node/32 (Help section with commands, rules, and config info)
-http://www.twctf.com/drupal/node/44 (Files for playing thunderwalker with a ton of 24-bit textures)
-http://www.twctf.com/drupal/node/38 -CTF map section (view screenshots of 94 maps)
-http://www.twctf.com/drupal/node/36 (Videos from past Smackdown events)
-http://www.twctf.com/drupal/node/51 (Live status of TWCTF servers)