Yeah, they patched liberation in 1.2.211. I was pretty amazed when I saw they'd updated it really, considering so few people play it... I loved Liberation, but if they'd had patched a long time ago, perhaps they wouldn't have lost all the players. It was a pretty big f*** you to the players, really. "okay, now a few years have passed and everybody's left to play other games, let's patch it.".
As far as I'm aware, there aren't any other mods available. I'm sure there will be, but as it's an old game there's really no interest in people trying to re-exploit it, if you will.