I know this must sound like a broken record,but any word on this working? I'm hearing different things but there is no clear answer,do the achievements for Witcher 2 work at all?

We'll see : )
Theoretically saves should work. If not, you may always play the game one more time ; )

"yet"?

As I always say, the lack of The Witcher 2's achievements on GOG Galaxy is the only real stain on CDPR's reputation. Having them on Steam and not on their own store is absolutely ridiculous. XD