mootools 1.11 and 1.2 compatibility script

can some one help me to find mootools 1.11 and 1.2 compatibility script

Personally what I'd like is a reverse compatability script to downgrade from 1.2 code to 1.11 because I'm stuck w/1.11 in Joomla until 1.6 is released....and who knows when that'll happen. It seems like most mootools code out there on the web has been upgraded to 1.2 already and not many sites are keeping 1.1 code around...I'm stuck looking in google caches for links or trying to hit directories and see if I can get a list of js files.