sorry for being a noob in hacking but i need a little help here.the image here in this url about this userscript shows that if i installed this,hacks for the game will be shown in the description of the game.
after i installed it it doesn't show anything,

Did you install the userscript with greasemonkey, the firefox add-on? If you didn't, it's most likely that.

Your issue is that you're not using chrome. As of recent, Firefox is the bloated, hopeless browser. Even IE is better than it now.