Drivers Side Front Electric Window - Works, But Weirdly!

Hi,

When I bought my Mondeo the Front Drivers Side Electric Window Button was missing, I put a new one on but it doesn't really work. With the button off I can see there are 4 buttons than can be pushed down like this:

In the gap with the button missing (Here:)

When I push 1 nothing happens

When I push 2 or 3 the Window goes down as I'm pushing the button and stops going down when I stop pushing the button.

When I push 4 the Window goes up as I'm pushing the button and stops going up when I stop pushing the button.

When I put the Actual Plastic Button on (The same as the other 3) and push it around nothing makes sense..

Hope someone can make sense of this lol, whats the problem/what do I need to do to get it to work?

Thanks,

Dan.