The DS also got its share of LEGO Star Wars goodness with its own port of TCS! TCS on DS is a stripped down port of the console versions. Some things are missing, while there are also some additional DS exclusive stuff such as minigames. TCS on DS is also much closer to its console counterpart than preview handheld LEGO games. The game is clearly based on the console version, with levels recreated on the DS hardware. This ultimately means that the OT is also unique to this version, and shares no relation with LSWII on DS, which is a completely different game.
The guide works just like any other one, so get to it: