I don't have that specific recipe -- but I did find some others that might work for you.
ITALIAN MARGARITA
6 ounces frozen lemonade concentrate
3 ounces tequila
2 ounces amaretto
1 ounce triple sec
3 ounces water
3 cups ice cubes
Put all ingredients in a blender and blend until slushy.
Italian Margarita
Ingredients:
1 oz Amaretto
2 oz Sour mix
1/2 oz Tequila (Cuervo)
1/2 oz Triple sec
Mixing instructions:
Pour into glass. Stir. Add ice cubes.