I don't think you have to open any ports if you have the box checked to allow them.
On the other hand you can have them un-checked and open the ports manually.
Looks like you need to open some more ports if you are trying that route.
http://www.tomsnetworking.com/Sections-article49-page1.php
I would try checking the boxes.
I would advise against DMZ, not a good idea, IMO.
Open up remote management and I'll fix it?