There was an issue today with people not being able to submit, or edit games within the site.
Login to the Xbox LIVE Indie Games portal
Go to the Membership page at http://xbox.create.msdn.com/en-us/home/membership
Click on Join Now
When you get to xbox.com, re-accept the TOU
Manually navigate back to theXbox LIVE Indie Games portalWe are working on a way to fix this in a more global sense, but in the meantime, this should fix the issue.Thanks for your patience.