No, NOW() is a mysql function that will return current day and time - http://www.w3schools.com/sql/func_now.asp
You should probably be looking at my second post in that topic ie Using DataSets to display Birthday - #4 by Peter
It will make more sense to do that this way.
ie in dataset you’d have columns like: (for example)
Birthday - with date (only year-month-day will suffice)
Name - you’d put your employee name there
In ticker appearance tab you put the Name
and in filter DAY(Birthday) = DAY(CURDATE()) AND MONTH(Birthday) = MONTH(CURDATE())
On advanced tab under ‘A message to display when no data is returned from the source’ you’d put some text saying that today there are no birthdays