i was messing around with orb and hated it compared to TVersity - beyond the point - i couldnt get either to work with my curve (4.2.2.180) - ill just wait for 4.5 from Tmobo - dont want to deal with betas (did that with WM6 on the treo 750- complete pain in the but)
as far as your urls not showing up, im not sure - all i did was reintsall uSirius and it worked for me - sorry im not much help