Help! Anybody recognize this online game?

[wake_up]

DS played an online game about a week ago that he just started asking about again quite insistently, and I can't for the life of me find it!

It was set in a castle, and a boy and girl moved together up ladders and across different levels to pick up alphabet letters.  Sometimes they'd come across a door, and then a dragon would come out and tickle them.  Ring any bells?

Thanks in advance for any clues!

[wake_up]

 Oh jeez, never mind, I just finally found it.  Ask and ye shall receive... if anybody else is interested, it's here:

http://www.nickjr.com/games/one-good-knight-dragon-tower.jhtml