I found a simple and elegant way to set the datetime for the creation datetime and the updatetime. From the wizard simply fill in $date for the updatetime and the creationdate column and then in the code write $date = date('Y-m-d H:i:s');
But it would be nice if data assist would recognize date columns (in any format) o you can choose to fill in the proper date straight from the menu. And that the data wizzard would also display dates in the proper format (for instance European or American format). It would be a great add on to data wizard.
(Its already a great extension. I'm learning php now (I have a C# background) and together with HTML editor and dynamic dropdown I've already setup a small cms with a minimum of coding, great stuff)