Jenna, I'm also on Vista 64 (a fairly new user, so I thought it might
just be my mistake). This is my first try at jv16. The symptom I get
is the "Failed to gain full read and write access to the system registry
..." message from jv16. I am logged on as a system administrator and
ran jv16 as an administrator from the shortcut. I also tried disabling
my antivirus program. I still get the message. Is that what you see?
It looks like there is a later forum article relevant to jv16 on x64 systems:
http://www.macecraft.com/phpBB3/viewtopic.php?f=21&t=3696.
Jeff