Zeam Walk Through by TrOjAn
Install from market "Desktop Visualizer"
Once installed proceed
Press and hold on the screen, in the popup select "Add Item"
Select "Desktop Visualizer"
Select "Select Icon"
In the popup select "Image File" (you can also use and existing App Icon, a pack or Add-ons)
Browse to your icons and locate the one you wish to use
Then "Select Action"
Select the apllication to be launched
You will end up with this, for now I advise against ticking the box that stops home application from changing as this sometimes causes slowdowns. Of course you can try it and see
Select "OK" and voila, the icon is now on the screen.
From here press and select the new icon and drag to the zeam dock bar.