Wait I have a freezer 7 pro and installing it was just like the stock HSF. You just push the pins down on the little holes in the motherboard.
The bracket must have been attached to the plate already in your case, as it should be. If it was I don't think I would have even noticed that it was a seperate part.
Oh I thought you meant it came with a bracket that went UNDER the mobo so you could screw on the cooler like the more heavier coolers.