How to bring out the Skype icon on the home screen of the phone NOKIA 5800
just check your manual.
if you haven't got it laying around, look here:
or just scroll through your settings until you find something.
I flashed my 5800 with custom firmware, so I can't tell you how to do it. I think however that you need to go to homescreen settings as noted on page 14 of the manual.