Hi Kate, I enjoy doing Kakuro puzzles too. They are very addictive. I found a good puzzle site the other day that has daily sudokus, crosswords, code crackers, wordsearches and alphabet mix puzzles.
I sent them an email asking if they would ever add a Kakuro to the site and they said they will have one up there in January 06. I cant wait, all there other puzzles are good too.
www.ThePuzzlePlayer.com