If there's another thread that describes this, I apologize.  I had to hunt a bit to find everything needed to get it working, so I thought I'd paste it all here so future miners can save some time:

1 - As listed in the FPGA-README doc with cgminer, install this driver for your little USB miners: http://sourceforge.net/projects/libwdi/files/zadig/

Note the "latest" link on the top of the page isn't what you want!  You want the one that starts with Zadig.  As of this writing, the version is: zadig_v2.0.1.160.7z
Also note you will need 7zip to unzip it.

2 - After it installs, reboot as windows tells you do.  Wait until Zadig tells you its done installing, windows may ask you before Zadig says it is done. 

Note that you only have to do it once for all your miners, not once for each one.
Also note that the renaming doesn't seem to work right, or is not intuitive.  I tried renaming one and it didn't work.

3 - Install the UART to COM drivers from here: http://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx

4 - Check device manager, you should see items under your ports section now, with the COM port assigned for each one.

5 - Run cgminer-nogpu with these options:
--icarus-options 115200:1:1 --icarus-timing 3.0=100 -S COMx -S COMy -S COMz -S COMetc

For my 7 miners, I'm using:

--icarus-options 115200:1:1 --icarus-timing 3.0=100 -S COM3 -S COM4 -S COM5 -S COM6 -S COM7 -S COM8 -S COM9

Note that I saw a post from one of the cgminer authors suggesting to use 115200:2:1 and 3.0=80.  When I did that, I got errors and cgminer immediately crashed. 

I'm getting about 333mh/s with the above on Win7x64.

M