Well, on the back of my AC:WW card it reads: "ADMENOJ22", or if that 'O' is really a '0' then "ADMEN0J22".

The difference is probably the "0" and the "1"
0 = AC:WW v1.0, 1 = AC:WW v1.1

I'm not completely sure but if you try adding codes to your AR I suggest finding V1.1 Codes first.