It looks like you created your other platforms' projects by basing them on the ARM one.
Simply open up your "Project Settings" and in the "Link" tab you can find a /Machine:ARM parameter in the "Project Options" section. Simply change this to the architecture you want (e.g /Machine:SH3) and you're done.
Of course you might still have other problems, but at least that one will be solved.
Hope it helps!
AL