ok bushy let me help u out. u have a thrdless fork, headset right? Tell us what fork, and from that we can decide what compression you can use. You can use ICS which is really cheap and simple and works pretty good if you install in right. You can also use SCS (its similar to ICS) but you would have to cut down your bars 2 inches. OR you may be able to use HIC if your bars are OVERSIZED.
So tell us what fork u have and what bars. Dont mess around with that thing you found on SHQ . its a component to one of the compression systems i just named.
You could get a shim made and sit it inside your clamp with a compression cap, but then you would only have a single clamp on your bars = fail