Spoke too soon. Once I've opened the Upload File server behavior to bind the Default File setting as directed, the Finish button no longer works. I can click cancel, but Finish is not recognized. I've tried restarting DW (I'm using 5.5 for this project) but no love. Should I install Data Bridge in CS6?
UPDATE: Turns out Finish doesn't work regardless of whether I make any changes or not. I'll try installing in CS6.