1.Got to your taskbar and exit all " NOKIA PC SUITE "
2.Connect your phone with data cable (select PC SUITE in your phone)
3.Now Open NOKIA SCREEN DUMPER
4.Go to File Menu And Click " CONNECT "
5.It'll show a message " CONNECTION OK "
6.Now You are ready to take screenshots
7.click on the " DUMP " button (after selecting the part u want to take screenshot in Ur phone)
8.Now clck on the " SAVE DUMP " button