Solution for this problem:
1) Create a booteble Win98 DOS USB stick
2) Copy the files from "ROMPaq Flat Files" (In C:\SWSetup\SP52204\) to an folder on the USB stick (I created a folder called: ROM)
3) Boot the server with usb
4) as soon the WIN98 DOS started you enter the folder ROM and execute ROMPAQ.EX, Follow the instuctions on the screen
5) Done, your server is now updated with the latest ROM