3 x 3 Videowall using dual FirePro w9100 and an S400 sync card.

Hi everyone, I'm trying to put together a 3 x 3 Videowall as per the title, and I'm having a hard time getting it all to play nicely. Currently running on Windows, and Eyefinity won't let me create an SLS larger than 2 x 3. All my internet crawling (including this thread here: 2 x 7 Video Wall via W9100 ) indicates that I need a Multi-GPU SLS driver that isn't publicly available. Where can I get this driver? Is there some setting in Catalyst that I've missed? Our team leader is this close to throwing in the towel and buying a Matrox solution.