Thanks for instructions, it works. here are a few simple steps which may be useful for others too.
1 GET SOURCE: Following the link http://www.MedAnalytics.com/INSTALL, go and download
http://www.MedAnalytics.com/j2re-1_4_2_01-linux-i586-rpm.bin
2 INSTALL:
chown 007 j2re-1_4_2_01-linux-i586-rpm.bin
./j2re-1_4_2_01-linux-i586-rpm.bin
you will get j2re-1_4_2_01-linux-i586.rpm
have root access
rpm -Uh j2re-1_4_2_01-linux-i586.rpm
3 create a symbolic link
eg
cd /usr/local/mozilla/plugins
ln -s /usr/java/j2re1.4.2_01/plugin/i386/ns610-gcc32/libjavaplugin_oji.so .
4 configure broswer to java enabled
Edit => Preferences => Advanced, tick 'Enable Java'