If you want to use the web interface plug in the first USB connector in the line. You can download the software to open the web interface for you from the recons web page. I think it's just for using the web interface via pc.
As above but there's also a home made bit of software in development that promises more features than the Bitfenix interface gives us.
http://forums.overclockers.co.uk/showthread.php?t=18436816
It's called Phoebetria.
I wont bother installing them as I don't mind using the physical controls and do you know if the long metal things are important because it wont fit in my case with them attached?
Which ones? The heatsinks or the metal frame?
The heatsinks are necessary to dissipate the heat from the transistor and the frame is needed to hold the Recon in the case.
I really wouldn't recommend removing the heatsinks unless you can be 100% sure you'll only ever run this thing at low load.