NYNH SD40-2 Repaint

Today I thought about repainting the New York New Haven SD40-2 into NS paint. I took all the files out of the .AP file and into normal folders and the route still works normally. I then made everything not read only. After editing the XML's and then saving them back to the Bin's, I started painting. I went into Railworks to test what I had done, and the locomotive will not show up in the list. I triple checked all the Bins and there is no error that I can spy. Anyone know how to make this work?