Which version of SmartZone controller? If it's an old version that supports 7962, then you're good. Otherwise, you could either downgrade the SZ to an older version that supports it (which you probably wouldn't want to do), or you're out of luck.
On the other hand, the 7962 was a great standalone AP, if your controller doesn't support it you could always run it in standalone mode.
You can check the Release Notes for the SZ version you are running to find out which APs are supported by which releases.