i mean if that the pushbutton of p1.0 for example
is connected to both p1.0 and the INT0 pin in the same time (this is done to all of the push buttons on p1 so that it means when any push button pressed it will make interupt)
OK here it goes:
if all pushbuttons are connected to !INT0, then all P1 pushbutton pins are shorted and will show the same or there is something you are not saying.

Erik