Custom field date => sort threads by this date ?

[ZiNgA BuRgA]

If you want sorting, you'll need to make a numerical field for the date.
Use the Integer data type (note, if you change your existing field, you'll lose any stored data!) and use the input/output conversion functions to convert to/from a textual date.

It's a little tricky to do unfortunately.

Example input formatter:

Code:

<?=strtotime({VALUE})?>

---

Example output formatter:

Code:

<?=date('r', {VALUE})?>

---