I still have Debian Lenny on a server, witch runs a script that isn't 5.3 compatible.
That script runs mod-php 5.2.x with apache2
I now like to install php-cgi 5.3 running as fastcgi, maybe even php-fpm.
I compiled php 5.3.6 yesterday, but it just came to me, shouldn't it be possible to just install php 5.3 cgi with apt-get, without breaking apache mod_php?