The 1v1 Ladder for Madden 07 on XBox 360 is now open for sign ups. The ladder will be unlocked for challenging Monday, September 18th. There will be a madden league opening in October. More information will be posted on that later so check the forums. Her is a link to the rules for this 1v1 ladder:
/rules.asp?set=Madden+2007+%28XBox+360%29