Hey there,
I have just installed support to export your Personal Messages to an XML file.
The resulting XML file may be loaded in an internet browser (such as FireFox) or a spread sheet program (such as OpenOffice Calc or MS Excel).
I know regular members have a limitation on the number of PMs allowed, so this way you can export PMs you really want to save, and then use the "Prune Messages" feature to remove messages depending on how old they are.
This new feature may be found on the left-hand side menu of your Personal Messages section of the forum. It is listed below the "Prune Messages" option.
Regards,
BigMike