With the disk version of the game, in Vista or later you need to run it in Win 9x compatibility mode to avoid that problem with equipment becoming corrupt. Unfortunately, this only helps with a new game; once the corruption starts switching to a compatibility mode will not fix or limit the problem.
Right click on the div.exe file in the install folder, or a shortcut for the game, and select properties, then switch to the Compatibility tab and select a compatibility mode there (and maybe check off to run as administrator and disable display scaling on high DPI settings).Inventory graphic placement bug
That version number behaviour is normal; the game itself wasn't changed between 1.47 and 1.49, just the DRM removed.
Your post count is still one, so the earlier try must not have gone through.