Can't get Minion to run

[huntr1]

I'm on 64 bit Vista, tried both the 64 bit and the 32 bit version. When I try to run Minion after install, I get this error:

Exception in thread "main" java.lang.NoClassDefFoundError: C:\Program Files\MMOUI Minion\minion/jar
Caused by: java.lang.ClassNotFoundException: C:\Program Files\MMOUI Minion\minion.jar
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)

Anyone got any ideas?