Forum Rules (click here) We can't talk about Warez on the forum. But what confuses me is why you downloaded an exe file when you're using Mac OSX. exe files only work on Windows!!!
Check the file size is as large as it should be (should prolly be way over 100 MB)

BTW you can get a free trial version of photoshop. Google it. Or go to http://www.download.com/3101-2003-0-1.html & search it.