can't get tomcat to compile...servlets.

[Parvez Rishi]

hi,
i'm new to servlets and tomcat. i've installed tomcat with apache
1.3.12. it serves servlets and jsp's but it does not compile them.
i have to precompile them everytime i make changes. i'm using jdk1.2.2
for linux (redhat 6.2). where do i have to specify the compiler path.
i have set the environment vars. TOMCAT_HOME and JAVA_HOME.

thanks.

parvez