Can i order to my skoda dealer the Climatronic dual-zone electronic air conditioning because i have just the Climatic air conditioning. And about what cost is it?

I think it's a factory option.

hmm :(... what about the cruise control?

Cruise control can be done if you have the right controller in the steering. You need to know the part number of the one fitted to your car. Possibly can be found via chassis number.