I’ve gotten to the point where I’ve developed a fairly extensive QA site on versions from 1.X up to 1.5.1 so far and until I began customization of the WP install to perform various functions I really don’t think PHP came into the picture other than the hardcoded links. WPML works out of the box at this point as much as WordPress itself works out of the box. The basic amount of PHP used to handle the boilerplate functions like hard-coded links doesn’t really even require you to know PHP, just to copy and paste from their guide.
