You need to either use some of the MySQL date functions to format the date during the query, or use PHP's date functions to format the data returned by the query. The first method is preferable as it's what a database is designed to do.
For example, the following query should return your date properly where "date" is the name of the field storing the date info:
SELECT DATE_FORMAT(date, '%m-%e-%Y') FROM my_table;
-geoff