I'm not really concerned with this, since I just need to edit the JS file, but it doesn't change the character minimum if you change it higher than 3 characters. Can't you incorporate a variable of some kind to pull that info straight from vBulletin?
Also, there's a typo in your phrase "The username must
me 3 characters or more" which I just have to edit the JS file as well, and you might have already fixed in your latest release.. I just haven't downloaded it.
Also, what I really don't like is that when you click inside a box and then click out of it to, for example, change your username, it will tell you "Password must be 6 chars or more" even though you haven't tried typing anything yet. Can't you make it so that it only shows you error messages once you've started typing something?
Well that's it with my suggestions.. Thanks!