How to Do Exposure Bracketing..

.. with a camera that doesn't have any?

Answer:

1. A good tripod
2. and tips from this site.

light frame: (note the overexposed gate area)

dark frame:

blended result:

..and a few more shots:

detail closeup (no post editing)

Ok.. the last 2 images weren't blended, it's just a single shot, but still with the tripod :) Just wanted to see how sharp the results are..

I am quite satisfied with the stability (of the tripod).. even while shifting exposures manually there is minimal shifting in the images.