The mod runs perfectly now, but the problem is totally server side.. If the server is 'restarted', just the COD prompt for our instance is reloaded etc.. I suppose that the script doesn't support this (it has to be started when COD itself is running right?), but as just that one instance keeps running it will not implent the features into it. Also, as the script isn't closed and restarted, it doesn't restart either.
We decided to drop the little 'project' (running this mod on a dedicated host :)).
Thanks for the help to make it run anyway!