Double Return Into A Memo Field

Is there any way in which I can automate a query (or update table query) to find the next date stamp that always starts with 'DATE', and put a double return in before it (so it starts on a new line with a spare line between). This is a table with 2 fields in it, the first being a Customer Reference number, and the second being a memo field, and some of the details and dates are quite vast. As an example the following text that is currently being displayed in the memo field would be displayed as the section below.

From this:-
DATE: 13/11/2007 TIME: 2:24 PM:went to pay with CC DATE: 09/10/2006 TIME: 3:41 PM:Sent Invoice to Scott DATE: 10/10/2005 TIME: 10:22 AM:Email follow up to obtain feedback DATE: 25/10/1999 TIME: 11:18 AM:Received all documentation

To this:-
DATE: 13/11/2007 TIME: 2:24 PM:went to pay with CC

DATE: 09/10/2006 TIME: 3:41 PM:Sent Invoice to Scott

DATE: 10/10/2005 TIME: 10:22 AM:Email follow up to obtain feedback

DATE: 25/10/1999 TIME: 11:18 AM:Received all documentation