I think you can use the parameters collection of the Configuration object to find out what you need:
For x = 1 To vServer.Configuration.Parameters.Count
This is what I got for a typical installation showing the data, error, and log file info for the master:
-dC:\Program Files\Microsoft SQL Server\MSSQL\data\master.mdf
-eC:\Program Files\Microsoft SQL Server\MSSQL\log\ERRORLOG
-lC:\Program Files\Microsoft SQL Server\MSSQL\data\mastlog.ldf
You can also find the data path of any known database by using the "PrimaryFilePath" property of the "SQLDMO.Database" object.