if you truly have the zip and not the bz2 or whatever the other ones are and you can not unzip it there is something wrong with your unzipping program.
also, this is not a program that you can run on your computer. you have to have a hosting account with a hosting company and a domain name of your own. you will have to make sure the domain name is pointing to your hosting account. you will have to create a blank database at your hosting account.
once you have all that, you can read the install intructions contained in the folder named "docs" that you will find once you unzip the download.
I am available for custom work on a donation basis. Please send me a PM with your needs.
Premium phpBB 3.2 Styles
OK, so what's the speed of dark?