I highly doubt anyone will be able to help you with this since people here are mostly NBA Live freaks. Sorry.
What do I recommend? I'm happy you asked.
Go to google and type in something like "NBA 2K6 community", or "NBA 2K6 Roster Updates" or something similar to those...be creative. If you search for communities, look through and you are bound to find something similar to this site but for that game. Go in the community and look for the search bar and then typ in Roster Update and see what you find.
Hopefully you will find something.