Try Christmas Tiles from the Arcade (http://www.docskillz.com/docs/index.php?action=arcade;sa=play;game=135)
New game to play!
Steve, not sure if these links need updating, but it asks me to login to play this game from the link you provided. Clicking the arcade and playing the game from the main nav menu is fine.
Also after completing the game, I got the error: the score was not saved because session is missing.
Hmmm, might be a but in the mod. We are working on a new version but Underdog is on Hiatus, atm. I'll post it on the test forum and see how it goes. I can't remember testing this to see how it works in the new version. Possibly, an smf upgrade changed something and is not allowing it to work.
Thanks, for the update!