ubuntu 8.10, changed ispcp port, php won't work on port 80 now

[jackbauer]

Hello world. I caused an error on my server. Here's the shindig: i have ubuntu intrepid that had wordpress running on apache2. I installed ispcp but then I couldn't access phpmyadmin or my site. My solution was to configure /etc/apache2/sites-available/00_master.conf and /etc/apache2/ports.conf to serve ispcp on another port and an appropriate vhost on port 80. However, now php isn't working out of the site i set to port 80. I get 'No input file specified'. Any advice, world?

I was guessing it's missing a php handler? Any advice?