Need Update Of Select Using TOP 1

I need to update a table as follows:

Update item1, item2, item3, item4 in a table where column1="email_address" and column2 is ordered acending so the most recent entry for a specific user is updated.

column2 is a time stamp.

Pseudo code something like this:

UPDATE Table1 SET item1, item2, item3, item4 WHERE Table1 is TOP 1 ORDERED BY column2 ASC column1="email_address"

So i want to update only the most recent entry of a customer with a specific email address. I can't get the SQL command together that will do that.

I aint that bright so specific syntax always helps.

Thanks,

Bill