first of all, nice program ;-)
but, i have a problem installing it.
What have i done?
I have a working gallery2 installation --> '%root_dir%/Modules/g2data'
I have a file named 'test.php' in the '%root_dir' dir ;-)
use the full url to the minislideshow.swf and mediaRss.php
also to use mode=dynamic you need to have gallery's dynamic albums module installed/active.