GCW only have nocd crack for english version, so, maybe that's why you cannot use it on your german version.
With the original fifa2005.exe, it should ask for original cd be inserted, not "nothing happens".
To make use of the Image, install a free for personal use software, Daemon-Tools, available at
www.daemon-tools.cc
Then mount the .mds with this small software.
Tested last night, actually that Image also works for English version.