Ginge, I've searched high and low for cranberry juice with nothing added, to make a particular cocktail, can't find it anywhere, ridiculous isn't it?
As for cranberry and UTIs, I swallow a cranberry pill everyday, Boots own brand, at the suggestion of my GP. She's not convinced it does any good and neither am I but I feel it's not doing any harm even if it's not doing any good.
The thinking is that it can stop bacteria sticking to the bladder wall and help prevent bladder infections...maybe there's something in it starone, as you've not had any recurrence since taking it :)