Though lack of a quick loading standalone client (GUI based) still prevents me from changing two other passwords now.
A quick-and-dirty way to do this is (assuming you have firefox or mozilla installed) to create a shortcut to this:
For Advanced Options:
firefox -chrome chrome://passwdmaker/content/advanced-options.xul
For Basic Options:
firefox -chrome chrome://passwdmaker/content/basic-options.xul
You'll notice it doesn't quite work yet, but if you're interested in this capability, I can get it to work for the next release without much effort.
-Eric
p.s. this might make for a good Tips & Tricks post when it actually works properly :)