CHDK raw (dng) -> jpg

Hello.

On a canon powershot s2, I'm using the CHDK firmware hack and I'm
experimenting a bit with raw pictures. I tend to convert raw pictures
with dng4ps2 to convert them to dng files and I'm kind of wondering
how to obtain settings for adobe camera raw to yield something that
resembles the jpg as it comes out of the camera.

I have a couple of files online here for comparison:

http://picasaweb.google.nl/THCganja/CHDKExperiments/

The first pic is the dng file converted to jpg by picasa and the
second pic is the jpg as it comes out of the camera.
Any suggestions regarding what settings to enter in Adobe camera raw
to approximate the look of the jpg as it comes out of the camera would
be appreciated.
A strategy to automatically obtain suitable settings for adobe camera
raw to approximate the look of the jgps as they come out of the camera
as a starting point for further modifications to the raw file would be
even better.

Kind regards, Niek