Touch the icon (don't click) so that it is blue...
Hit blackberry button...
That brings up a menu in that menu there is a move option...
Click it... Move to where you want it... Then click it into place...
Simple....
Posted from my CrackBerry at wapforums.crackberry.com
Press menu where you can see all of your icons. Highlight one of the ones you want to show on the main screen, press menu and move the icon. Place it where you want and press menu again to complete the move. You will want to have your more important icons in the first 8 slots so that when you are on the main screen you can see and choose them from there.