I am having the same problems that seem to have beset a few people.
I am trying to upload with quix and it is hanging on the upload screen, i have tracked the problem down to my router, i think, i am using a netgear dg834g, i was ondering if anyone else has one of these and if so what settings are you using???? Alos the settings on the xbox might be handy in case there is a conflict.
I have the xbox on static ip, the router is seeing it but no bananas!
Any help appreciated.