I did buy this software (shareware license) at one time. While the software's usefulness may be debated (it does not show you much more info than the G1000 front panel on the main screen), it does have some very useful utilities, such as allowing you to manage (copy, easily rename, etc.) registrations. I think this was a worthwhile effort of user collaboration, and perseverence on the part of the program's author, Okan Altug, though much of the underlying information should have been provided to the interested users by Roland (e.g. structure of the performance files). I still can not forgive Roland for making us do that.
The program has since been placed in the Freeware domain. The page
http://daytonamusic.com/rag/download.htm contains all the necessary files (scroll towards the bottom). You should be able to install and use the program with your brand of the Roland keyboard.
Good luck