A coworker maintains a list of clients' birthdays so we can send a card. She
wants to sort it by the date column so that we have all of July's birthdays
in one section, for instance. However, when she types in the month and day,
it automatically assigns the current year to the date, even though it is not
displayed. She did most of the list last year, so most of them are 2007
dates. The ones she added this year are assigned 2008, so when sorting by
date, they show up at the end, not mixed with the other July birthdays that
were entered in 2007.

How do we get a strictly month/day date with no year?