Make sure like RYSR said you have the latest Pinmame from VP Universe
http://vpuniverse.com/forums/files/file/4236-sambuild/
Also make sure you have the sam.vbs installed
When you install that version of Pinmame, make sure click on the "Install button" to ensure the newest version is regitered
Also faster to ask for help on vpuniverse.com or vpinball.com