I love this addin use it all the time. ITs a fantasic tool to me for more catching part errors than actual laying out cutt parts but is a great tool for quick estimation of BF lumber.
Ok I'm going to ask a stupid question, but first things firs. Does any of it work. When you go to pluggins does cutlist appear, and you should click on it and see two tabs One labeled Cutlist and one labeled layout. Second you must have some parts selected to use the tool. I make components and makes it easy to capture things quickly. If you also assign materials to your component parts, its better. i.e cherry, plywood, hinges, dowles etc. Second when in the cutlist tab you must make sure the box cutlistoutput and layout output are checked to webpage. You don't have to use both. It also helps to select part key words and material key words so those are grouped together in your output. The best part I liked is when I finish a component, I quickly select it, and run cutlist and if any of the dimensions in the part list begins with a "~" then that means your parts are not perfect to scale. For example if you draw a box 2 x 2 x 2 and the part begins with ~ 2 x 2 x 2 then you did not draw your part perfect. it could be off by a 64th of an inch (sorry i use imperial) and would not show but it will there. I've fixed several problems that way. And as you know errors in parts add up! I've drawn actual full scale templates from my drawings so its critical. anyway shoot me a pm and i can help you if you wish. I love it best tool I ever used and i tried so many cad packages.