where to find this new installer?
Im sorry for the questions, Im new to this website :)
No problem :)
When you're on GOG, at the top of the screen, there is a bar with buttons. Over the "Account" button with your mouse and click on "Library". Here you see your games. Now you click on the game that you want to download something. Now, you should see the files you can download : for WWPR, there is an installer (it has been updated by GOG, you only need to download it), and the manual. Click on the installer to launch the download.
There is a second way... Using GOG Downloader
. After installing it, on the same last screen than in first method (the game page in your library), you can see a button "More" : click on it and click on "GOG Downloader Links". Here you have links to use with GOG Downloader : click on what you want to download, and it will launch GOG downloader automatically and the download (I personnaly highly recommand this way, with the GOG Downloader ;)).
And a third way : using Galaxy. But I don't know at all for this one :P