We've mentioned this already, but let's reiterate something: Though the Wrath Alpha client is floating around out there, be very very careful about what you download or try to access. The Alpha servers are not for you, and attempting to download the client isn't wise. My recommendation is simply to not do it.
We all know how many accounts have been stolen due to keyloggers hidden in links, ads, and other things. Keep that in mind before you click on a download link. A dirty .exe with a filename disguised to look like a Blizzard downloader for the Alpha client is out there. There are probably more than one. Nobody wants to lose their account, and we don't want you to lose yours, either.