hi Sambuca, thx for the quick reply,
as you suggested i opened a terminal, ssh into core, become root and at cmdprmt typed 'mediatomb'
then i get an overview of how its bound and it seemed that its bound to my external! network,
so i opened up a browser gave in my external ip followed by ':49153' and it worked!!
but now,... how do i get mediatomb on my internal network?
i must confess, in order to get my network up and running i had to swap network interfaces from the core in webadmin.
Should i reopen the ticket so this gets fixed?