Java SE (Java Platform, Standard Edition)

Howdy there! My son installed "Java 2 Runtime Environment Standard Edition v. 1.4.2_X" so i could play Dominoes and other games on Yahoo. This worked for sometime, then something happened and i couldn't play anymore. Either the Java failed to initiate (Java icon failed to appear in tray when i clicked on game rooms), or something else with Yahoo itself. Someone told me to un-install it, then re-install it which i did (through all steps). Now, i can't find this version anymore. I did find:
J2EE v. 1.4 with J2SE v. 1.4.2_02
J2EE 1.4 SDK for win/lin/sol SPARC
When i clicked on the download button for this version (after going through signing the agreement,clicked on windows platform), the page that comes up says "You are authorized to view this page. You might not have permission to view directory or page using the credentials you supplied".
What am i doing wrong? Or what am i not doing? As far as i know, i only use the Java when playing on Yahoo. Do i need this version, or the one my son installed (which of course, is now un-installed)?
Any help you can provide will be greatly appreciated.
Thanks,
Lynyrd