DO NOT use the ANCIENT 'reference files' that come with the forge tools as they WILL CAUSE minidumps with all later versions of entrenchment as they are for entrenchment 1.00 ONLY. you will mostlikly have entrenchment 1.051 assuming you have updated with impulse.
if you want reference files for the current sins & entrenchment versions download either myfist0's(in the OP of the link that superzero0 supplied or my reference files.
also there are several utilities to help with sins modding( especially entrenchment and diplomacy) by several authors, usually on the first couple of pages of the modding forum. I suggest downloading all of the utilities/tools by the differnet authors and trying them to see which works best for you.
harpo