Anyway, we found one and got there in the end. One look at her and he said we had to leave her there for the night. Kids in tears on the way back home of course and worried sick if she'd be allright. She had to get an operation to fix it and to get it all stitched up again and luckily we could pick her up late the next day.
She was all wobbly and couldn't really stand on it for a while, but cats are pretty resillient (as will most animals be I think) and after a few hours she was "walking" on her funky purple and pink bandage. Now she has to stay indoors for 2 weeks, and she loves to be outside so much... she also likes to sleep a lot (or my son likes to photograph her asleep)