From: Michigan, U.T.B.
Actually, you end up with a file named "SteelPanthersWorldAtWarUpdate-v8403-Updated-Beta.zip", this is not the same as 8.40. You do have to sign up specifically in the Members Club, in addition to the login you currently have for using the forums. You can use the same login and password, think of it as having two parallel logins, one for the forums and one for the members club. By the way, MG is just short for Matrix Games.
As for mods, it can be confusing. I'm only using some replacement weapon sounds, swapped in with Modswapper. I'm waiting for the Depot multi-mod to be finished, it sounds cool.
Try getting that 8.403 again, making sure to "sign up" in the members club just like in the pic I originally sent.
Happy hunting. Send me a personal message or email if you need additional help.
Reduce unrealistic SP:WaW slaughter, "Low Carnage" (v8.403 or Enhanced):
Settings: 90S,80H,100RR,XXXTQ,110TT,150IT,180AvS,130AvA,150SOF / Command & Ctrl ON / AutoRally OFF
Visit the Enhanced forum at http://enhanced.freeforums.org