Hmxhenry has asked again to separate the issues so please post rock band central server issues ps3 only here:
http://www.rockband.com/forums/showthread.php?t=232580

There is another one for rock band central issues for wii here:http://www.rockband.com/forums/showthread.php?t=232530

For xmb issues it may be worth starting another seperate thread though i don't know if it is worth it because it is not going to be fixed unless someone can find a way to reproduce it consistently.