[ruusvuu@home c]$ ls -l /usr/lib/mozilla/plugins/
> total 84
> -rwxr-xr-x  1 root root 22744 Apr  4  2005 mozplugger.so
> -rwxr-xr-x  1 root root 40608 May  3  2005 nphelix.so
> -rwxr-xr-x  1 root root  5086 May  3  2005 nphelix.xpt


$ ln -s /usr/java/j2re1.4.2_05/plugin/i386/ns610-gcc32/libjavaplugin_oji.so
/usr/lib/mozilla/plugins/libjavaplugin_oji.so


FYI: Might want to update your JRE.