Empty the concentrated limeade into a large pitcher. Mix in the soft drink, and cherry juice, and the juice from the lime.
Chill, serve on ice garnished with lime slices and a few maraschino cherries.
Notes
For extra tart, add another can (or portion thereof) of concentrated limeade to taste. Needs to be served immediately because of the carbonation. Additional flavour / colouring can be achieved with a small amount of grenadine.