According to your Settings-weather.php
$SITE['WXtags'] = './MBtags.php'; // for weather variables
Your MBtags are in your document root.
That file has
date|2013-03-17|// local date:|:
time|13:17:44|// local time:|:
dateUTC|2013-03-17|// UTC date:|:
timeUTC|20:17:44|// UTCtime:|:
so is really the sample file I'd included in the MB-plugin.zip ..
You need to set MeteobridgeNano SD to do the FTP to your site, then status should display correctly.