the framework doesn't cache anything at the moment. if there is any
caching going on it's probably on your server or in your browser. the
back button simply invokes history.back() so nothing special going on
there either.
i would make sure the contents of the files are in fact different and/
or that you're not caching anything locally on your side.
did you check out the demo? it shows you how the whole thing works:
http://clientside.cnet.com/ciui/demo