ok i used the mozilla firefox link to javas main site, whereas they have a button, "download free java" or something i click it it installed, now i have java 7 update 40(x64) and java 7 update 40. neither of those work on firefox, it keeps saying i need a plugin, but i can tfind the plugin.  however, the animation does work on internet explorer. 
ok so quick story: i have java versions 6U21 and 7U40 here is the problem: in my physics class, my teacher assigns these online animations for homework. unfortunately my laptop doesn't run them with these versions of java. however, i did see the version of java the school computers were using to run them was java 6 update 14. could someone please give me a link to the download? i run a windows 7 dell inspiron N5010 laptop. x64 bit. i use Mozilla Firefox.-i would prefer the java to be for Mozilla Firefox. now, i need this driver asap as i have to do these animations by tomorrow.  thanks, inverno4661 
I NEED A CERTAIN VERSION OF JAVA