I'm half asleep, and didn't see anyone address this, so I'll stick a little note here, to hopefully keep you from pulling your hair out if your php scripts don't work. You may need to get your hosting service to add a line in their server.cfg file that looks like this:
AddType application/x-httpd-php .php
in order for your php scripts to be parsed. Most likely, if they are running PHP 3x, then their AddType line is going to look like:
AddType application/x-httpd-php3 .php3
Just have them put the other AddType line right under this one, and you'll be good to go. If they won't do that, then just go thru all the .php scripts, and replace any instance of .php with .php3, and it should work.
Just thought I'd stick in my 2 cents worth.....
Forgive me Father, for I know not what I do.