Here comes the difficult part...
You've successfully downloaded the file, but now you need to get it in the FeralHeart file. Attempt to open up the file.
If the file opens up right then and there, you should see 3 files. One is labeled "exports", another "My_Objects", and "Sounds".
Enter each file and highlight every file that you see. Left click the highlighted items and "Extract to the specified folder". You want to find your FeralHeart file, which should be under "Local Disk" or "(C:)". Once you've gotten that far, select "FeralHeart", then into "exports". Confirm by pressing "OK".
Do this for each file.
In the "exports" file of what you downloaded from the link I gave you, you should see something labeled "PrideLands.fmh". Highlight it, extract it to LocalDisk(C:)>FeralHeart>exports> CLICK OK.
In the "My_Objects" file, you will see 5 different files. Highlight them and do as I instructed before.
In the "Sounds" file, you will see a file labled "ThisLand.mp3". Do as instructed before.
After this entire process is complete, you should be able to go to the Cape of Distant worlds and see a brand new portal titled PrideLands!
The only problem you should run into is opening up the downloaded file to begin with. First, just determine if you can get into the file or not. If you don't I can help you out.