You mean the files that are in the first post of this thread? Or like coobe, did you get your Worthy Heroes from some other source, since the Worthy Heroes version we are using is 1.7, not 1.6 or 1.7b?
http://www.shrapnelcommunity.com/thr...?Number=537578 <- that is the link to the attachment with the correct Worthy Heroes we are using in this game.
Make sure it is the folder \dominions3\mods\ that you are trying to place it in. Note that you need to extract it directly in the \mods\ folder and not make another folder for it under the \mods\ folder.