Hi,
first of all check if the Google Analytics stats are present directly using your Google account on
http://www.google.com/analytics/
If data are correctly collected the problem could be the configuration of the integration between JSitemap and Google Analytics. In that case ensure that the proper domain is setup exactly as registered in your Google account. More info at this FAQ
http://storejextensions.org/faq/why-the-google-analytics-integration-shows-stats-for-a-different-domain.html
Regards
