Alright guys I put together two videos on how to properly mod Daggerdale (this was a request).
The files needed are in the description of the videos.
How to extract your save and fix the checksum:
How to mod the save:
NOTE: These are my first video tutorials I made, so it's kinda crappy and I stumble over my words a bit :P
Code:Item ID List: http://www.mediafire.com/?f945fbrae0ni9un