1.how can u permanantly change the icons for running applications in the dock? i can set them, but they just stay as long, as the application is running. after starting it again the old icon is back. i also want to assign an icon for applications like firefox and i want them to be used for each open window of this app.
Are the images you're using in the OD directory? If not copy them to the OD folder.
2.is it possible to show running tasks and trayicons in the same dock?
Nope.....
3.how can u change the tray-icons used in the dock?
Left click and hold until the dialog pops up.
4.can u decide which tray-icons are shown?
Nope...
5.does anyone know a good digital clock for object dock?
I don't, but I haven't looked for one. 
