I've not worked on a mac myself but I assume it is the same, get them to upload their .fhp file to Media Fire (http://www.mediafire.com) the file can be found in their feralhert>presets folder. Once uploaded ask them to create a Tiny Url (http://tinyurl.com) of the download link seeing as you can't copy and paste things into Feral Heart and the links are pretty long, once downloaded add it to any folders that have 'preset' in their name aside from the 'My_Presets'