I'm sure you're just trying to help, but note that it would be extremely inadvisable for anyone to download and run software from a file sharing site that is blocked by OpenDNS on the say-so of someone they don't know. That's one way malware gets around. I'd guess that's probably not the case here, but even so I wouldn't come near that app with a ten-foot pole.
For anyone reading who wants to remove MacKeeper, it's possible without such a tool. Try the instructions posted here: