Papervision3d + Augmented Reality + video upload

Hi,
I’m working on a similar project to this one.
http://livingsasquatch.com/

I have serious problem to overcome. My plan is to make the gallery of AR videos created by users. I have two questions about it:

Whats the best way to connect webcam output with AR+PV3D output?

Whats the best way of uploading the data to the server?

My plan is to make an array of BitmapData, convert it to the video and than send it to the server. Im not sure it thats the way it should be done.
Id like to avoid using FMS, its way to expensive.