Attached Link: http://www.stopthemotor.com

I'm running P4 on a mac. Have been trying to DL stuff like hair, etc. I've tried to follow the brief installl instructions on the readmes, but I can't get anything to appear in my libraries. I.E., downloaded a mac/pc stand alone hair file, put the hr2 files into the runtime/libraries/hair folder...nothing. What am I doing wrong? Help!! Is there a tutorial on installing even the simple stuff that a dummy like me could figure out?