From the download page, click the download link to download the latest version of RadioLo ver. The file you are downloading is a standard Mac OS X disk image. With Safari, the disk image should automatically mount and open a window in Finder.
If this does not happen, use the Finder to drag the downloaded file to Disk Copy, located in the Utilities folder of the Applications folder.
Once the disk image has mounted, a Finder window will appear that contains an icon for the RadioLover application. Simply drag this icon to your Applications folder, or wherever you like to keep your software. This copies the application from the temporary disk image onto your hard disk. The software is now installed and you can now eject the mounted RadioLover volume.