I don't know about Redhat as I am running SuSe 7.1 but

I didn't get a icon to click after I installed jdk 1.3.1 and LimeWire 1.6d but typing sh runlime.sh would not work. I had to modify runlime.sh in the line where it says

java -classpath . RunLime to

/usr/java/jdk1.3.1/bin/java -classpath . RunLime

and it worked. I suspect the path to jre is wrong.