help with OpenLaszlo installation

[Wade Smart]

12242006 1630 GMT-6

Following the directions on this page:
http://www.openlaszlo.org/node/350

I installed OpenLaszlo. 
Typing echo $JAVA_HOME does nothing on my system. Is a blank line. 
I did set the path to the sun sdk located
at /usr/lib/jvm/java-1.5.0-sun-1.5.0.06

I then read this post for tomcat:
https://help.ubuntu.com/community/ApacheTomcat5?highlight=%28tomcat%29
but that didnt help me learn anything new. 

On this page:
http://www.openlaszlo.org/node/351
it talks about running laszlo apps. If I navigate to the tomcat
directory via command line as it says to start tomcat I receive:
startup.sh: command not found. 

wadesmart at wadesmart:/usr/local/lps-3.3.3/Server/tomcat-5.0.24/bin$ ls
bootstrap.jar       commons-logging-api.jar  setclasspath.sh  
startup.sh          catalina.bat             jmx.jar
shutdown.bat        tomcat5.exe              catalina.sh
jsvc.tar.gz         shutdown.sh              tomcat5w.exe
commons-daemon.jar  setclasspath.bat         startup.bat

but you can see it is in the directory. 

I put this:
# Set the following to the Java 5 home directory
JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun-1.5.0.06/jre
JAVA_BIN=$JAVA_HOME/bin
PATH=$JAVA_BIN:$PATH

in the bash.bashrc file.

Im currently at a loss and do not know what to look for as to being
wrong or what to do next. 

wade