The 7352 requires a minimum version of ZoneFlex software (9.5.1 if memory serves). You can register your new products at
https://support.ruckuswireless.com/re... and the website will upgrade your account to Premium status for the remainder of your software warranty (which is ~90days from shipment +-). That should take care of you for this situation, but once the warranty runs out your account will revert back to guest status.
The WatchDog support program provides both advance replacement on your controller as well as technical support access and software upgrades so I do recommend you look into that.