We don't have a download link yet, but you can find it using Google.
Review
SETI@home is developed by University of California, Berkeley and is used by 23 users of Software Informer. The most popular versions of this product among our users are: 3.3, 3.7 and 3.8. The name of the program executable file is SETI@home.exe. The product will soon be reviewed by our informers.