Hi J..
My 15 year old son was just diagnosed with Asperger's last year at 14 years old. He also goes to an emotionally impaired program.
It took us over 10 years going to various doctors and therapist, getting multiple diagnosises over the years that would kind of fit, but not really. When he started the EI program, he was on the violent side and we thought he needed to be there, but now we are questioning if EI is the most appropriate place for him because, like you said, he is not doing well in that environment. He is no longer as violent as he was and has gained better control of physical out bursts, but we learned that those episodes were part of his AS because of his frustration.
Has he seen the EI programs psychologist or psychiatrist, if they have one? My son goes to Beacon Day Treatment in Inkster and at first, after his diagnosis, they weren't sure about it either, but we recently met with the schools psychiatrist and she seems to agree with his outpatient psychiatrist about the diagnosis.
If you are still unsure if your son has the proper diagnosis, I suggest looking for a Doctor who specializes in the Autistic Spectrum for a second opinion evaluation because they would have a better idea about what to look for in an Asperger's diagnosis than a regular doctor or psychiatrist.
Good luck and I hope that you find the answers that you need.