Print Screen on iMac keyboard with XP

Hi everyone,
I am using FSX on my iMac where I have WinXP too. Works very fine except when I want to take a picture of my screen, because my keyboard is for iMac and it doesn't have the Stamp/R Sist key. I have searched the net to find a solution but none of them seems to work. Any idea how to make a screen capture with that keyboard?
--------- |THANK'S||||||
I am using FSX on my iMac where I have WinXP too. Works very fine except when I want to take a picture of my screen, because my keyboard is for iMac and it doesn't have the Stamp/R Sist key. I have searched the net to find a solution but none of them seems to work. Any idea how to make a screen capture with that keyboard?
