Well, I downloaded it. What a laugh.
You get a copy of BOINC v6.4.7, and a text file of instructions.
The instructions file uses *nix formating, but once you fight your way past that, you find there is no reference to either SETI or BOINC in the file. So you're on your own.
So far as I can tell (by doing a '/a' administrative upack of all the files - I haven't tried a binary compare yet), the BOINC installer is a straight copy of the Berkeley download, even though it comes from an nVidia download site. So it has no auto-connect to SETI as a default project - you would have to understand (guess?) that you have to connect to SETI, and sign up for a new user account, before anything happened - and all without being referred at any point to either the BOINC or SETI homepages. Somehow I don't think they're going to get many live accounts from that.