Dropped the new jar over the old jar and got this error message:

"unable to launch java application"

"unable to locate the applications "main" class "org.jempeg.empeg.jemplode.main" must be public and have a public static void main (string (jibberish) method (LAX)"

And, since I made no backup of the original .jar and overwrote it with the new one, now I can't even open the old version 45.