Specifiying a find request by using >= in a date type
If a table contains the field DateOfRegistration. I want to write a script that searches for all the records that have an registeration date after a specific date. The script I have written is as follows:
Go To Layout ["Students" (Students)]
Enter Find Mode 
Set Field [Students::DateOfRegisteration ; "& >= 01/27/2011&"]
My script fails at the bolded step and I am prompted with the error, " The provided find criteria is not valid. Enter a valid request before proceeding."
What is the correct way of specifying the value in the Set Field script step that will give me a range of dates above the specified date?