Are you looking for a walkthrough for a particular level? You can find answers on the forums for each campaign below. In addition, the lovely Tcarr9 has made some awesome walkthroughs on YouTube that you can view here: http://www.youtube.com/user/Lordkalvanmidnight

The Dungeon:
http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Dungeon%20Campaign/view

Sorcerer's Keep:
http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/view

The Ruins:
http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Ruins/view

Stronghold:
http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Stronghold/view

Carl's Crazy Funhouse:
http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/Carl's%20Crazy%20Funhouse/view

The Gauntlet:
http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Gauntlet/view