The install package is fine now and can be installed through the CB plugin installer.

Some parts of the backend still have to be translated, but frontend appeared complete upon first glance

All the files are there but packed in wrong directories so the plug-in installer can't handle it.

Solution (follow these guidelines to install):
1. unzip
2. remove .svn and _macosx maps (they are not neccessary)
3. create \dutch map
4. put all files there except images
5. create \dutch\images
6. put all images there
7. zip dir structure
8. install plug-in and smile :-)

OR

wait untill the owner puts a new version on this server.