SRAM Dual Drive set up question

[seadragon]

Hi All, does anybody on here have this on their bike at all?

My new bike has arrived and all seems to be set up, except for the loose box on the rear, I think it may be called the clickbox. I guess it fits somewhere onto the rear derailleur, but I am not sure where, or how.

I guess ideally I should take it to a bike shop but I am keen to ride the bike asap and I cant get my LBS to fit me in anytime soon. If anyone has a few close-up pics of the rear part of the bike then I would please appreciate maybe being sent a link or some pics if possible to [e-mail]

Many thanks in advance.