I was playing around with some styles in PHPBB today and had a funky problem. I downloaded 10 and 8 worked liek a charm! 2 however, obviously were not loading the .css files. I was a bit stumped until I looked I did an ls -l on the templates directory and saw that the file permissions for the two directories containing the non-working styles were set to 400. I went through and changed the dirs to 755 and files to 644 and everything worked great! Soooo, if youare having problems with PHPBB styles not working, check file permissions!