Prerequires
Download the latest binary distribution.
Install a SQL Server 2005 database
You can use SQL Server 2005 Express for example
Note that NMOnitoring has been tested for SQL Server 2005 Express only. You can off course test it / modify it to use your own Database)
Create the Schema
Use the sqlcmd or SQL Server Management Studio to execute the script schema creation script, located in the distribution file : CreateDatabase.sql