I got a little problem here I am new in this and I dont know even how to activate my loader
You should be using a standalone application called the
Flash Player projector. If you downloaded a Loader pack (such as the one prepared by
sby) then you should already have a copy of the projector. Please do
not run the game in a web browser.
You start the game by opening
Loader.swf in the Flash Player projector window. This can be done via drag-and-drop, or File>Open, or by establishing a "Run With" default application. If you're using sby's pack then you should have a "play sdt loader" shortcut available in the game folder.
Once you have started the game, you might be uncertain about how to install mods or customize various settings. The
Newbie Guide offers a lot of introductory information and I would encourage you to read it.