Hi A.B.
For your first question, it's possible, but you'd have to modify the script to make it happen. If you can give me some time, I can track down the line number to change for you.
2nd qustion: Actually, I'm surprised that a user can create a sub-album! When you're using "per member" uploading, each user is currently forced to upload only into their current album. What's missing is the feature.

Hope that helps!