2004 4.8is Front Bumper Fit-Up Question???

[BimmerE38E53]

Hello. I recently removed the front bumper for the first time since owning the car and found a couple of problems.

One, the plastic clips that attach to the bottom of the fenders are broken. They obviously need replaced. My big concern is the top corners of the bumper. They seem to have a slit in the fender and a "bump" on the bumper that are supposed to push together. I don't see how the bumper meets the fender on the top and is supposed to held in. See the pictures below for an idea. I don't mean where the bumpers is sticking out to the side of the car. I know those plastic holders need replaced. I don't understand how the clip is supposed to go into the slit closest to the headlight.