--------------- Added [DATE]1323036650[/DATE] at [TIME]1323036650[/TIME] ---------------
this might work, or get you going in the right direction. not the best at regex
--------------- Added [DATE]1323036760[/DATE] at [TIME]1323036760[/TIME] ---------------
would be easier if we knew what this was going to be used for.
you can test your expressions with
http://regexlib.com and the Regex tester link