User-agent: *
Disallow: /customer/
Disallow: /live_help/
Disallow: /search.php
Disallow: /register.php
Disallow: /cart.php
Disallow: /home.php 

User-agent: GoogleBot
Disallow: /*.php$

User-agent: slurp
Disallow: /*.php$

User-agent: msnbot
Disallow: /*.php$