@chad
that class is used to attach the zoom to the element. it is a jQuery thing.
Having said that you seem to be getting close. When I look the zoom is working. Just in the wrong place.
looks to me like you need to change the settings in the jQuery initialisation which is in jscript_jqzoom_init.js and/or apply a css rule for position:relative to the .bonzer_zoom class.

@phil
great. what next?