I'm not really fond of cranberry juice (I drink it as medicine), but I can't imagine getting rid of a bladder infection without it. I feel bad for you.
When the white cranberry juices came out (I can tolerate some of the mixed flavors of white juice better), I did a bunch of research to see if the white cranberry juice had the same effect--it does. It turns out that blueberries also have the same effect; although I don't think I've ever seen anyone mass produce blueberry juice (big pieces of blueberry pie, perhaps? :-) :-) )