That does not mirror my experience, I hate to be the guy suggesting this but have you considered the fact that you're using it wrong?

What I mean by that is that SQLite really is a replacement for open() and as such is not multi-thread compatible. If you're doing a lot of work that's corrupting you can also turn up the level of binary logging until recovery becomes easy enough.

I'm using SQLite effectively on a few thousand multi-threaded windows machines and I've encountered corruption exactly once- which was when a hardware raid had degraded non-gracefully.