RGM version 4.48 is available for download on RGM's homepage. I do not know what changes were made, as there is no change log available. I have contacted the author of RGM to get the change log info. I will mess around with version 4.48 a little more and see what I can find. But I just wanted to give the heads up to everyone first.
RGM v4.48 download link - Bithandler.com
Take Care and Have Fun!!!
EDIT: I have tried this version with Windows XP SP3 and Windows 8.1. When the enemy shoots at you RGM crashes. I have contacted the author about this issue and will have further info when I receive the reply.
EDIT: OK the latest version 4.49 has been uploaded on the RGM homepage and it fixes the crashing issue. Just go to the above link and download. Enjoy!!