Ralphalot: Hello to all that have had (are having) issues with the port forwarding...
I too moved to Slingshots VDSL today and was disappointed that I couldn't forward ports 80 and 443 etc and was wondering if anyone had heard anything more about this update?
For now I'm using the DMZ option which I'm ok with for now as I run TMG.
Fairly certian Slingshot will be using TR-069 for management.
No way would they use simple HTTP/HTTPS for management. You probably can't forward those ports because they are reserved for services on the router. Have a look in the 'Management' section and you will see all the services there like HTTP/S, Telnet, SSH, FTP etc. Change the HTTP and HTTPS ports to something non-standard and you then forwarding them to internal servers should be possible.