I have a running Tomcat installation version 4.0.1 and Apache 1.3.23. I have done manual tweaks to the Tomcat configuration files previously on different distributions but not on SuSE 8.0.

I would like to know if there is some kind of a graphical manager or some scripts that need to be run before/after the tweaks are done so that if there are any dependencies they can be maintained.

Not sure I follow you. If you updated files in $CATALINA_HOME/conf then you may just have to restart tomcat (su; /etc/init.d/tomcat restart (I think it's called tomcat anyway). Other than that, I don't think there is anything that depends on tomcat that you need to be concerned about. You may want to consider upgrading too, 4.1.18 is a pretty solid version and has some nice graphical tools for managing your installation, restarting the server, and installing new web applications (http://localhost:8080/admin & http://localhost:8080/manage) I don't know if these are in 4.0.1. Good luck, Josh