That actually won't work either, because the current wallet format of Armory (and underlying library code) doesn't accommodate compressed public keys.  Trying to import them will just cause errors.  As I keep mentioning the new wallet format:  it will handle compressed public keys -- in fact it will use them by default.  But until then, the support isn't there.

For now you're just going to have to send the funds through the blockchain to get it to the new wallet.  I recognize not everyone finds this solution satisfactory (they'd like to take some addresses with them), but it's the best I can do for you until the new wallets are complete (which unfortunately have become slightly lower priority in favor of upgrading Armory's resource management).