Dr Skeptismo has a good point, you never know who might decide to take you seriously, so apply to wherever you want to go. Note, an away rotation would be a good idea if the program has no history of DO acceptances or DO Residents. I'd recommend an IR away rotation if you are interested in IR, at least that way you can work hard. It's hard to stand out on a Diagnostic Radiology away rotation... in my opinion.
I'm a 4th year DO applying for rads, ACGME only.
There is a neat spread sheet floating around, but I dont have it. I will let you know a list of programs that I am aware of that have taken DOs from my school or other DO schools, or at least offered interviews to DOs
In no particular order:
Cooper University - Camden, NJ (ACGME with DO Program Director)
Drexel University (DO Program Director)
University of Arkansas
Detroit Medical Center
Henry Ford Macomb Hospital , Warren MI
UT San Antonio
UT Houston (in the past, at least)
Baylor College of Medicine - Houston
UTMB
University of Connecticut - Hartfort
St Francis Hospital - Evanston IL
MUSC
Cleveland Clinic
University of Illinois - Peoria
Texas Tech - El Paso
EVMS
University of Colorado
LSU - New Orleans
Baystate Hospital - Springfield, Ma
Maimonides Hospital, Brooklyn Ny
University of Kentucky - Lexington
That by no means is the total list. It's just all I can offer.
Like the other guy said, certainly look at every program you're REALLY interested in. Look at the resident list and see if there are any DOs. And, for the programs you really really want, consider an away rotation. It will at least get you on their radar, but doesn't guarantee anything. Though, just so you know, where I did away rotations, I got interviews - but they are already on the list above, so maybe I would have anyway.