2003-11-22 CHUM/CHURN or Rumrunner
Know when to fold 'em: 3 Prior Weeks
2003-11-30 Temporary - a worked example
2003-12-07 not solved yet
Orthography recapitulates Etymology.
[updated 2007 due to broken links] http://www.npr.org/programs/wesun/puzzle NPR Weekend Edition Sunday Puzzle
http://www.puzzlers.org/ National Puzzler's League Dictionaries list
/usr/dict/words everywhere, nearest Unix/Linux or http://minnie.tuhs.org/UnixTree/V7/usr/dict/words.html
[updated 2007 links] http://wordlist.sourceforge.net/ - lots of dictionary type spelling lists here.