Beeeeeeyotch!!!!
Dude, what a day! Here's a quick write-up...
First, open the box. A bunch of stuff will come spilling out. Don't lose the stuff.
Secondly, there will also be paper "instructions" written in a secret autistic retard language. Remove "instructions" from box. Wipe butt with them. Now burn them. This will prevent more confusion than if you had actually read them. They should not have been named "instructions", rather they should have been titled "Do Not Read This. It Will Only Make Things Worse. Go Put The Kettle On, Mate. Yer Gonna Be Here A While!!!" I dunno. Perhaps "HAHA!!!" would have been more fitting.
(Note to Kaymar: "Instructions" are bits of information, put into chronological order, detailing the process of assembling and installing a product you have manufactured. They often include a list of parts included in the purchase, along with pictures of the aforementioned parts, and often diagrams (diagrammes) of how to assemble and install the aforementioned parts. The diagrams (diagrammes) should probably be drawn by a professional artist, not by a drunk with a ball-point pen and a bar napkin. I probably shouldn't have to tell you this, but I'm a Yank, so what do I know?)
Thirdly, get some extra tools...along with various wrenches, sockets, ratchets, etc., you will need a good drill with various bits and grinder heads, because approximately 1 in 3 holes will line up. The rest of the holes you'll either have to skip, which isn't advised, or re-drill. Make sure you set aside a full day or two to deal with this project; unless you're real savvy with metalwork, you're gonna need some patience.
Remove the bumperette. Stand there for a while, scratch your head, and wonder what goes where. After an hour or so, you'll start to figure out where the holes were supposed to line up.
At some point, you will need to stand up, look over the pile of parts in your driveway and scream. Do this a few times. You'll just end up doing it later, you might as well get it out of the way. Remember that permanent damage to parts or truck or buddy or spouse may cause yet more trouble in the long run, so though tempting, don't go throwing, kicking, or shooting at these things.
Wallow in confusion and leftover parts for a few hours, wonder what the hell our friends from down under were thinking (or drinking or smoking) when they made this thing, and somehow, it'll all start to add up.
You'll just end up doing your own thing for the most part, because you'll be left high and dry. Almost none of the parts will line up, the latch plate will not close when it's attached to the bumper, so you'll go digging and cannibalizing other stuff to get washers to use as spacers. Don't panic; with the right tools, some time, and some company, you'll get there. The one thing I can say for this tire carrier is that it seems like it'll hold up well, although the parts are off in terms of machining, they're fairly beefy and well made.
Good luck if you're planning on doing this installation anytime soon, and feel free to PM me if you want to vent or have any questions.