I am a new server administrator in an educational institution that has several Mac servers all running Snow Leopard server. Recently, it was requested that we update the PHP and Apache Tomcat versions on those servers. Specifically, PHP version 5.3.8 and Tomcat 7. I am relatively new to Mac OS X server administration and haven't done this type of thing before. I'm having trouble finding much useful information about this. Can anyone tell me if it's possible to update these on Snow Leopard server and if so, what the process is?