is really usefull!
Thanks for this work again, it will help a lot of ISPConfig administrators, who want to use suphp on their ISPConfig server.
I think it is a good idea not only to explain howto install suphp, but also how to configure it for different Linux distributions, like the /etc/suphp.conf file for example.
I mention this, because after installation configuration is still necesarry.
Just one example, if you install suphp on Debian, you need to change wwwrun into www-data within /etc/suphp.conf. The permissions and handlers within /etc/suphp.conf need to be configured as well.