I had this problem. Once the adf.ly finishes the small count down on the right side of the computer, click it and it would return you back to the site, aka Feral Heart. Then you would need to sign in again due to various reason. Once you done that, the download would pop up.
Arf, FH is completely safe to download, so try turning off your Norton firewall and turn it back on once you have re-installed the game. Make sure that you un-install the game before re-installing it and delete the FeralHeart folder in Local Disk (C:). Also please try not to multi post if someone hasn't replied, instead edit your previous post by clicking the 'modify' link on the top right of your post c: