I have both the BNSF speedster (bnsfspd.zip) for both a cabview and to use on its own, as well as the FBL speedster pack (fbl_spdr.zip), and I noticed that I cannot run any activities I create with them. I found an apparent fix, upspster.zip, uploaded by Dick van den Hoven for the UP Speedster. As someone who is not very computer-savvy, I am unsure how to rename or alter the updated .ENG files to replace the defective BNSF and FBL files. Any suggestions?