Does it matter which way around I put the cables on my dpdt switch?

http://www.geocities.com/CollegePark/Library/1355/electra2.gif
(copy & paste)

Here you see the switch...does it also work, if the green cable is on the top...?

If the green jumper is 'on top' you've just flipped the switch round, it doesn't matter. The two poles act as two seprate switches, controlled by one action, so which pole you use for what doesn't make a difference.

now I connected the cables like in the image above (the link), but either I hear the distorted sound, or nothing. So my bypass is wrong...is this picture wrong?

Are you sure your jumpers are connected properly? Because it's either that or a faulty switch. Switches don't fail that easily.

ahhh I looked another description, and now I think I know what's wrong, I'll test it in 5 minutes

and I think the Schematic IS wrong, the right-middle and right-top should be reversed, shouldn't they?

You're right I didn't see that, I'm kinda tired. I must go to bed now, night-night see you all tomorrow

ok, it works now. Thank you very much smoguzbenjamin, you are great  

ghehe thanks Just trying to help, I appreciated being helped a lot when I started out about half a year ago, so the least I can do is help others with problems I faced at the beginning

Congratulations on your build!