I'm not sure that a screw in the leg would be a bad idea, there looks to be SOME material left, but not having one in the same state as yours it's tough to judge from a picture.
Worse comes to worse you could try that at least...
The good thing is she went for so cheap most places that getting a replacement isnt' a huge deal I guess. Just a pain at this point I'm sure.
The best part of the story I've heard so far is that a kid is playing iwth a VOTC Leia. I recall many people telling me VOTC wasn't for kids at all, and were meant to just sit in the packaging... I can see some point that kids maybe weren't the target, but they're damn fun figures nonetheless.