Mate you really are starting to stress me.What its forever server 12 months 20 Euro sky.de?
The 20 Euro option is a Year extension to what you currently have. So what ever you have left on your free subscription that came with your box it extends it 12 months. This will not give you SkyDE. Not bright.
The 30 euro option SP1 is the same as the above it adds 12 month but gives you SkyDE bright.
Now please for my sanity go buy SP1 at 30 euro and go watch your SkyDE.