Add cck field in the Case information group

Yes, in fact there is a fork of casetracker that is entirely based on CCK -> http://drupal.org/project/cckasetracker

It's highly unlikely that we'll add the ability to add a cck field or two, more likely we'll eventually move all of the casetracker to cck style fields - at some point in the future.

The work in cckastracker somewhat geared to those who aren't afraid of getting into the code, and is probably not production ready. But I'm sure that help/testing is appreciated.