I will not add any more connectors to Voukoder (unless there is a very good reason to do so). It's internal interface is just too limited which makes hacks/workarounds necessary. I am currently working on the voukoder successor, and when this is ready I might also add support for other programs (i.e. Avid).
This is a shame, I think having Voukoder Classic for Blender would have automatically made it the best free video editor (and yes, it can edit video).