
I have downloaded the aircraft and have started to play around with some of these numbers and have made some progress. The vibration issue might not be able to be corrected. As a designer, some of these qualities have been built into the model and without that file, you just can't change it. Another point is that this aircraft was designed for FS2000, which means that it may not function at 100% in Fs2002.
I did notice that the author did put his e-mail address in the readme file. You might try wring to him and see if he could help.