Back home and here is what I figured out to upload videos to your team from your own video "bank".

Go to your team and click upload videos.
Then click allow so that the java uploader will bring up the uploader on the webpage.
On the bottom left side of the page you can click choose existing videos. This will take you to your videos that you have uploaded yourself.
Just check all the videos that you want to add to the team.

You will have to go back and categorize the videos after they have been added to the team, but you can atleast upload them from your video "bank" instead of reuploading the videos using Flo's uploader.

Hope this helps.