I am amazed that this statement has gone uncontested on SDN for almost 24 hours. Obviously I am somewhat biased, but I think it's fair to say that A) the amount of time you will spend in the OR as a prelim at most programs is zero, hence I see no "increased anatomy" learning, and B) I have trouble with the "better training" also. I'll leave it to the SDN community to comment further.
In your case, I would have applied to one group of hospitals for radiology and prelim medicine, and to a completely seperate group for categorical medicine. This way, neither group would know about the other. There might be a small number of programs that you applied to both -- either because geographically they were ideal for you, or if you rotated at a specific hospital.
Regardless, that's not what you did. As I said before, applying for more and more tracks will only confuse the matter. You could certainly add prelim medicine -- Rad programs won't care if you apply to prelim IM or surgery, and it's totally reasonable to apply to both. But adding prelim medicine will likely further injure your chances of getting categorical medicine.
You'll need to decide whether you want to add some applications, to new programs (i.e. one's you have not already applied to), and apply to categorical medicine. This will only work if your letters are generic, or if you have specific IM letters. If you letters say "..would make a great radiologist" then it doesn't matter what you do, since it will be obvious to all what you are doing.