If you are running windows and Need drivers for the ModMiner Quad you can find them here:
http://btcwebhost.com/~cablepair/Win7_64.zipInstalling the drivers is pretty easy basically just unzip that file somewhere like your desktop and when you plug in the mod miner quad select to browse to the driver location or alternatively go into device manager / right click and click update driver and browse to the location
I'm sure you've had experience with this during development but does the driver for the ModMiner conflict with the driver for a BFL single? In other words, can they both be run on the same system?