As you don't tell HOW you did it, it's impossible to say if you did anything wrong, and if so, what you did wrong.
All I can suggest: move these addresses back to the root folder to export them. Then let the user create new subfolders in Outlook and move them back to those himself.
The OE 6 in the machine i want to export, has an address book with email accounts but the user have created subfolders under the main address book in order to organize email accounts so in each subfolder he has some emails accounts and so on so when ever he wants to create a new email to be sent, he will decide to select from the TO: the folder he wants and of course pick the email account he wants to send the email to, the problem i have is when i export these, it will go to Microsoft Outlook, and everything goes, all the messages but the address book does not go entirely into M.Outlook just a few email in the root of the address book, in other words those subfolders under the main address book never went to M.Outlook, i would like to transfer them or export them as they are in outlook express but they don't go, what i am doing incorrectly ? can any one point my mistakes ?