you dont say if its a singel or double glazing it is more that likely double, on the out side of the broken panel, there are 4 laths one on each side of the window panel. one across the top and the other across the bottom , they press/snap into the frame, when the pannel is in the frame, to hold the frame in place, you need to get a screwdriver ,, and prise the laths out , but be carefull not to bend them in any way, prise them out were the meet the frame, do the smale ones first, across the bottom ,when you get one out , , the rest will be easy , and you will see how they work , just press the back in when you get the new pannel the long ones first ,, good luck..
w, November 2010
