Need advice DIY digital camera repair

Happy New Year from a first-time poster!

I'd like some help/advice on opening the case of a FujiFilm FinePix
3800. Online research reveals a characteristic problem with this
camera -- loose screws rattling around inside short it out.

On my camera, the screws holding on the front bezel came loose. I didn't
recognize this problem until the bezel nearly fell off ! The camera
*still works* but

1) I need to put 'em back! and
2) the gap allowed dust inside which I'd like to remove

These bezel screws attach from the inside. The case screws come off
okay, but I also need to remove the Mode thumbwheel.

Anybody know the correct way to do that?

I guess I could have it repaired by Ritz Camera, but would likely cost
the present value of the camera, and might be something I could do
better myself. So, *would* you attempt this, and *how* do you do it?

Love to hear your ideas, folks. And happy 2007!

JPM