Help needed with backing up Outlook email fol

lol... Don't you see you're on a FRENCH website ?... many of us do not understand one word of that language. even more, you're not in the good section ;-)

before update, you have to save that data folder :
C:\ WINDOWS\ Application Data\ Identities\ {XXXXXXXX- XXXX- XXXX- XXXX- XXXXXXXXX}\ Microsoft\ Outlook Express

Then, when XP is installed, to restore your mails, you have to open and close Outlook once.

To finish, go there (under XP):
C:\ Documents and Settings\ Nom_utilisateur\ Local Settings\ Application Data\ Identities\ {XXXXXXXX- XXXX- XXXX- XXXX- XXXXXXXXX}\ Microsoft\Outlook Express

and replace the content of the folder by the one you copy before...

Or you can use that kind of tool :
http://entreprise.01net.com/windows/Utilitaire/sauvegarde/fiches/30673.html
to save all the config (black list, mails, users, ...)

For both of the methods, i do not know if everything is compatible between ME ans XP.

Next time... try to find website with english support or use french as language!