Well, if you actually would get an IE(Infinity Engine) editor, not just a browser tool, you might have more success.If we presume Player has Infinity Explorer shortcutted on the desktop (or at least knows how to get it open), what would the required steps be?
Push View->Edit, and you'll see the 'Animation ID' as 'Cranuim Rat - 57352', change it to something else, push Update Value, the push Save, and then you can quit the Near Infinity.
Coolios! You say change it to something else. Could I change it to say pudding or does it have to be a random number of my choosing?