Opscenter monthly report based on specific error code

Hi experts,

Q1) symantec opscenter analytics. Version 7.5.0.1. i need to customize a report which displays all specific error codes (like 129) which came during a month or a specific time period. please suggest how to configure it.

Q2) i need to customize a report which displays sucesss percentage for all SLP's  on monthly basis. like for month of  jan 2014 aplliance1_appliance2 SLP success percentage on monthly basis.