I understand your problem and sorry if we lost time. I was just a publication error.
Our component will be soon avalaible for Joomla 3, but not yet.
I use it on most sites I make.
However, installing this component somehow breaks the functioning of the ZOO component. Disabling Fabrik brings back the functionality of ZOO. I don't know on which end this fault lies but it could have to do with the new custom elements in J1.6+.
This doesn't change the fact that Fabrik is an amazing (especially for its price) Extension.
These link are deleted from the 4.5 version.