Sorry guys, found a small bug in the 2012 version of the OpsMgr Self Maintenance MP I posted yesterday. it’s been fixed now. the bug was related to the LocalizedText DB table monitor. please download it again if you’ve already downloaded it. the new version number of the 2012 version of the MP is now 184.108.40.206.
the details of the bug can be found here: http://blog.tyang.org/2013/03/04/powershell-script-failed-to-run-alert-in-opsmgr-2012/