[CentOS] Tomcat5 with Oracle/Sun jdk on CentOS 5.8

> I'm also not sure where tomcat5 set JRE_HOME. Been searching and can't
> find it. 
 
 Maybe you should look for JAVA_HOME ...

 /etc/init.d/tomcat5
 /etc/tomcat5/tomcat5.conf
 /etc/sysconfig/tomcat5

 That's all I can say - while I got tomcat4 running on RHEL3, and tomcat6
 on CentOS6, I have a bit of a gap when it comes to CentOS5 and tomcat5,
 although the differences between 5 and 6 are much less than between 4 and 5.