how do i take of a streering arm on my punto 55??

Sie, are you talking about the track rod end, that fits onto the front strut, that turns the strut when you steer? If so, it is held by a taper with a nut on top. If the nut has sheared off (never come across that before) the taper will still hold the track rod end in place. It can be shifted with a special tool called a ball joint splitter.

John
July 2009