All you need to do is to put stop actions ...
go to scene 1, to the timeline on top, right click lets say frame 3 then choose "Movie Control", then choose "Stop".
Do the same thing for scene 2.
If you will do it right it should work
How can I stay in a scene which includes some continiousley effects on it until a button clicks?
It all depends where your effects are!
Main time line? Then after your effect put a stop.
You effect in a movie clip? You will put a stop on the first frame in the main time line.
What you need to do when asking a question is to upload your swi file.
__________________ The Hairy One
Wayne helps those that helps themselves.
What you need to do is simply select the scene and, in the Properties panel, check the 'Stop playing at the end' checkbox. This will keep the animation in this scene (instead of automatically going to the next scene). You then add something (like a button) for the user to click when they want to proceed to the next scene.
Note: As Wayne said, it is always much easier for people to help if you upload a file (swi)