Look to my response on the previous page. There are other responses earlier in the thread.
Wait for updated trainer and follow the trainer readme. Some options require you to do something before you can activate them the first time.
For forge, do this
go outside the town you plan to forge.
close the trainer and the game
load the save
enter the town and click SMITHY
click on any item you plan to forge
toggle the forge options on
click the item again and the forge button should work.
this game is programmed in .net garbage programming language for gaming instead of a tried and true gaming engine or a faster gaming language, which is probably why it took so long to make it.
at any rate, this is my best suggestion.
Yep, all three one right after the other on the forge screen. Charcoal and unlock all items work just fine but I still require and have to use resources to craft, not just hardwood as the other poster experienced. Ive tried loading them in different orders, refreshing the screen by backing out and going back in, and restarting the game. Not sure what I'm doing differently than you but not a huge deal. Thanks for the trainer!