Try doing a search for "force xml refresh" like
this
There are some links that refer to adding a random number at the end of the xml file name (
like this one ) that seem to work.
Since the problem is the xml file isn't reloaded... putting something in the xml file will not help (it won't be "seen" since it's not reloaded)... so something in the html code that loads the swf and xml has to be done.