40k of compiled code seems like a lot to me to be making some straightforward flash-javascript calls and makes GA unsuitable for banner ad work as well.
Does anyone know if there is a 'lite' version of Google Analytics for Flash?
How about using directly the javascript functions? say:
ExternalInterface.call("pageTracker._trackPageview", "section/subsection");
ExternalInterface.call("pageTracker._trackEvent", "event", "cat", "label", "value");