'File open' dialog question

This is a minor irritation but - just wondering if any registry gurus out there have a solution. I run XPPro BTW.

More times than not when I want to attach a file to an email I want to find quickly a file which is relatively new - thus a look in the ‘open’ dialog box with ‘details’ and ‘last modified’ will bring new files to top and avoid deep nuisance scrolling. I usually set this up with two mouse actions but really would like to make the file display into a new default - such that like in a Win Explorer folder - the system ‘remembers’ the preference for every time I open the dialog.

So - any folks good enough with registry to suggest what seems might be only a small required change - tho I suspect it may be app specific and thus require a change for each app where this new default is wanted. Ideas?