I've made a new "Date Format" option in "Message Display" option tab.
This option allows user to set own Date Format in Messages (like Style
and Colors). There are few predefined date formats available but also a
"Custom Date Format" option exists which allows to set own datetime
format ("WhatsThis?" help is available and describes available variables
Localization has not been made yet (And I think I just can't do this).
http://trac.licq.org/ticket/1389 for more info and patch files.
Any comments/tests are welcome.