Welcome back, John,
You'll stand a pretty good chance of success moving to 4.53. 4.60 has a quirk or two, particularly related to locating the default script, and dealing with command-line args.
Easiest way to test is to put a current version in your netlogon folder, renamed to "kix324.53.exe", for example, and then change YOUR login profile to run that version of kix with your regular script. It should be fairly easy to determine if everything works, while only potentially inconveniencing yourself. 
Glenn
_________________________
Actually I
am a Rocket Scientist!
