I've downloaded patch 5 from GOG. Yet, I am unable to install it. It says"This patch does not support your version of the game. Please download a new installer."

Figured I'd give myself a bump here. Still can't install any patches. Though it might be because I wasn't able to install previous patches to the game, but I was unable to find patches 1-4.

Yeah, that's probably the reason. You can try to contact support with a request for older patches or just download the whole game again.

Same here. WHY don't they have all patches still available? They have 2 of them on line now.
Mute point as I am now downloading the existing big 9.5 patch. Also how can I verify what patch level my existing game is at right now? TX