OK guys bear (bare?) with me on this one. I got my new case the other day and I want to install my mobo. The case has a detachable plate to put it it on, and it looks like this (be warned - big images)


On the right hand side it has six of these, two you can't see in the first picture.

Then it has three of these on the left hand side.

Now my case instructions say to line the mobo holes up with the case holes, which seems obvious but doesn't mention screwing anything in. But if I don't then the thing will just drop off as soon as I lift my case up. As you can tell I'm at a loss really with what to do and I could use any help, at all. There is a gap for the IO shield in the case so I know which way the board should be oriented, but I don't see how I can screw anything into the holes on it when there are those other bits (from the case plate) coming through them. My motherboard is ATX and my case is ATX or mATX compatible.

- Apologies for the poor picture quality.

Thanks.