ATKBL website update

I mentioned that I was playing around with the script.aculo.us scripts on the website for the ATKBL. I want to implement a drag-and-drop style roster control for selecting which players appear in your starting lineup. Here's where I've gotten so far:

• Created rudimentary roster page
• Created database tables for teams, owners and players
  
• Entered sample data (two teams) into the database
• Implemented script.aculo.us sortable lists with data from the database

So I can drag the players around the positions, and that's cool. What I need to be able to do next is limit the number of players at each position, and update the database to save who is selected to start each week. If anyone sees this and has any advice or input, it's greatly appreciated. As I make more progress, I will post more info. Hopefully, I'll be able to create some solid files that other folks can learn from.