I just want to warn you that Visual Pinball was and continues to be the *MOST* difficult emulator to setup properly. I've tried many tutorials, reading documentation, other people's settings. I even tried to write my own tutorial for some friends after I finally got it all working - but something about Visual Pinball, or PinMAME, or the various launchers, or even the VBS files makes everything so tenuous that it's really hit or miss.
The easiest install I ever did, was when I took my hard drive over to my friend's house and just copied my whole working c:/Pinball directory. But even that had some problems and just forget about updating! It's not like MAME, don't update to new tables, or new pinmame's or new Visual Pinballs. Just leave it alone.
good luck, but be forewarned!
Joseph Elwell.