OK, as you wish: then transcoding is not working fine for you. It is for me; why would a fixed port bother me? And web authentication only adds seeming, and no real security.
You can always want more then you get; anyway we can't change things as they are in the hands of the VU-driver devs.
A little bird told me that VU is about to launch an updated version of the transcoding facilities. Who knows what that will bring us.