I was looking for the answer months ago, never found it, and it was never really an issue then
I have successfully installed suphp with ISPConfig which works fine, PHP scripts run as the website user rather than apache user, but I always came unstuck getting it to run CGI's -I just don't know where to start with the apache config etc.
Here is /etc/suphp.conf:
;Path to logfile
;User Apache is running as
;Path all scripts have to be in
;Path to chroot() to before executing script
;Check wheter script is within DOCUMENT_ROOT
;Send minor error messages to browser
;PATH environment variable
;Umask to set, specify in octal notation
Here is /etc/httpd/conf.d/suphp.conf:
LoadModule suphp_module modules/mod_suphp.so
And finally attached as a .txt file is httpd.conf (overkill probably - I know!)
Any thoughts would be much appreciated!