Try downloading this:
>Click here< (http://www.mediafire.com/?nz383mvs4b31mdh)
EDIT: And this:
>Download< (http://www.mediafire.com/?n3y7pg5sd3g8e59)
Lol, another edit: In the previous edit I forgot to change a part in the README.. It's 'fhPodium.fhm' :p I missed out the .fhm lul..
There is a 'README' inside each of the downloads. Make sure you follow them instructions.
If this fails, then take xRubyx and Thrillex's advise.
If you have maps in there you don't want to loose - Rename the Feral Heart folder to 'Feral Heart 2' and then when you've re downloaded FH you can select what you previously had in the original FH folder.
[Exept the thinks in Rocks and the map you downloaded. That may bring you back to the situation you had.]
Hope this helped you!