Hi,
Since IAP225 has not been officially released, and that it uses a different type of sofware image than the IAP105, the auto image sync will not work. It will work after IAP225 is officially released and that the same version of software is put on the cloud.
In the mean time, you can bring up the 105 by itself and upgrade it to the same version of 4.0 beta image that you currently have, and then bring up the IAP225.
Thanks,
Yan