You can download SpywareBlaster from here:

If you have a valid SpywareBlaster AutoUpdate license and install a new version of SpywareBlaster, the new version should automatically detect your license information. You can check by opening SpywareBlaster and clicking on "Updates" at the left. You should see "Automatic Updating is enabled". If not, click on "AutoUpdate" at the left and enter your license information again. If you have problems entering or validating your AutoUpdate license key, please contact support.