To download, just type in the link above (http://www.flightcommunity.com/rct/park/HillyLakesPoint.zip) then when the download is complete, WinZip will open (that is if you have it) and then just extract the files to your computer and double click on the file or move it to your save game folder. This should work.
If you experience any problems, please let me know. Thanks in advance! :)