Hey this is your opponent lol.
I didn't know if you'd tried something. (It probably doesn't make a difference, but hey.)
Try just sending the zipped file from your e-mail straight to the desk top, then right clicking on it (on your desktop after you put it there).
Then executing the "Extract Here" command. It'll unzip it right there on the desktop and then you can just get into your Windows Explorer, click and drag the unzipped file into the AGEOD\ACW\Saves folder or whatev.... See if that'll work. It's roundabout, and again probably doesn't make a difference, but maybe it'll work.
By the way...if you didn't already check out my e-mail to you...I deleted the password altogether. The file is still zipped, but there is no longer a password.
Cheers,
Coop