1 (12 ounce) can frozen orange juice concentrate, thawed
1 (6 ounce) can frozen lemonade concentrate, thawed
1 (6 ounce) can frozen limeade concentrate, thawed
1/5 (100 proof*) Southern Comfort (about 3 cups)
2 or 3 liters 7-Up, chilled
1/2 gallon orange sherbet

Combine juices and Southern Comfort. This can be done ahead of time and kept chilled.

When ready to serve, pour into large punch bowl; add 7-Up and sherbet (in large chunks).