additional clarification in case anyone is confused...
http://www.medschoolready.com/app/residencyconsiderations.asp
scroll down to where it says MD and DO residencies
wow I learned a lot actually
about 32,000 applicants (inluding MD, DO, IMG) for about 22,000 total spots of which 1,000 is DO accreditted
about 17,000 MD applicants, 3,000 DO applicants and 12,000 IMG's
for 22,000 spots
DO's can enter the MD match for the 21,000 spots. However, the above website says that they have a lower match rate, may have a harder time to match into more competitive residiencies, and may not be able to get their medical license in certain states because they matched outisde of DO's...bottom line though is that if you work hard enough, it looks possible to get any residency regardless if you are MD or DO...
all this info from:
http://www.medschoolready.com/app/residencyconsiderations.asp