The Flight Center just took on a new full-time hire for line service a couple weeks ago, but check in from time to time, the turnover rate here can be pretty high.
Travel Express is still settling into their new hangar location in the old JA place, but they ARE looking for CFIs last I heard.
I don't have a whole lot of personal contact with Illinois Aviation or the others, but I haven't heard through the grapevine about anything that's available around here.
Best of luck to you in finding something at DPA. Keep checking in and don't give up.