I was able to find the information I needed. The following German Yamaha site has the lastest version (V. 2.06) for the PSR 9000 Pro.

http://download.yamaha.com/search/produc...duct_id=1040757

Version 3.06 is the latest for PSR 9000 and version 2.06 is the latest version for PSR 9000 Pro.