New jQuery messing up a plugin needing an older version

New jQuery messing up a plugin needing an older version

Hello, 
I am currently trying to implement the Better Coda Slider in my WordPress header (NOT as a WP plugin). It works alongside my other plugins in Chrome and IE (more or less) but in Firefox, it falls apart. Better Coda Slider uses jQuery 1.2.6 and works just fine in all browsers (see:  http://jqueryfordesigners.com/demo/coda-slider.html) Without jQuery 1.2.6, it resorts to being a scrolling inline frame, which I don't want. 

See here for my usage of it:  http://www.monwho.org/registration/
(Yes, there are a ton of JS being loaded right now, but figuring out the slider in Firefox is my first priority at the moment.)

Please help! Thanks in advance!