I'm looking for the updated theme called "Kweli" by Chipmumkguy. I've tried the link in the original post and tried emailing the author, but both failed.

I've also tried Google, to no avail.

Anyone else have a link to the updated theme?

Is there something that makes you believe that there is an updated version?

According to the detail comments in the theme listed here, yes there's an updated version.
http://www.litestep.net/index.php?section=2&action=details&id=800
An updated version of this theme can be downloaded here...

http://litestep.digitalamt.co.uk/

404 error

Thus the request.