To install The Race Director on another computer just download the most current full install from our website here: http://www.theracedirector.com/Race-Director-Full-Download
Then immediately run an update from File > Download Update.
Then add your serial number (found in your current RD under Help > About Race Director)
If you would like to copy your race files over you can do so by doing a Full System Backup by going to your computer with your existing race, then going to File > Backup > Full Backup
Insert a flash drive and select it from the Path To Data. Click Backup.
Once it has saved, remove the drive and insert it into the new computer. Now select File > Restore.
Be sure to select Full Restore and to set your Path To Data to point to the drive correctly.