First, make sure no java-jre apps installed on your system, if any other java-jre version (such as java-jdk version) you must uninstalling first.
Open terminal (xterm), and:
tux@slitaz:~$ cd /TO/WHERE/YOUR_PUT_TAR.GZ_FILE (press Enter)
Extracting your tar.gz:
tux@slitaz:~$ tar -xzvf jre-7u3-linux-i586.tar.gz (press Enter)
Open other terminal and switch to your ROOT
tux@slitaz:~$ su
Password:(ENTER_YOUR_ROOT_PASSWORD_HERE and press Enter)
make new directory:
root@slitaz:# mkdir -p /usr/lib/java (press Enter)
remove and symlinking your java apps FOLDER:
root@slitaz:# mv /WHERE_YOUR_EXTRACTION/THE_FOLDER_WITH_NAME/jre1.7.0_03 /usr/lib/java (press Enter)
root@slitaz:# ln -s /usr/lib/java/jre1.7.0_03/bin/java /usr/bin (press Enter)
and if you need java plungins for your Firefox Browser you can activate and
make sure "plugins" directory is out in /usr/lib/mozilla and if no you can creating and
symlinking java plugins with:
root@slitaz:# mkdir -p /usr/lib/mozilla/plugins (press Enter)
root@slitaz:# ln -s /usr/lib/java/jre1.7.0_03/lib/i386/libnpjp2.so /usr/lib/mozilla/plugins (press Enter)
close all apps and reboot (do not logout) your slitaz.
After your login again, open your Firefox browser and typing on address-bar: about:plugins (press Enter)