Hi DrStefanFrank,
There is not too many options here anyway.
Here is a rough run down.
Load Codewarrior on to a PC
Plug the USB-BDM into the USB port and the 6 pin ribbon onto the 6 pin header on the PCB.
Turn on the PCB
Fire up Codewarrior
Load the Codewarrior project that you want to try out into CW
press the little green bug.
This will compile it, erase the FLASH and then programme the application into the FLASH in the microcontroller on the PCB. From here you can run it in the simulator or unplug the ribbon and run it standalone (if thats what the project is meant to do).
If you are a real newbie, there is probably about 87 steps that I have left out!
Good Luck!