Import personal files and Inbox from BO 6.5: how?

Hi to all,

we've observed that in our migration from 6.5 to XI 3.1 we've "lost" the personal documents and the inbox of the users. I've found on the net this guide:

http://help.sap.com/businessobject/product_guides/boexir31/en/xi3-1_bip_importwiz_en.pdf

Which states:

On the Import Wizard machine, map the drives to the source environment

directories containing the deployment's .key files, personal documents,

categories, and users' Inboxes:

u2022 $INSTALLDIR\locData for access to 5.1.x .key files

u2022 $WISTORAGEDIR\user if you are importing personal documents and

categories

u2022 $WISTORAGEDIR\mail if you are importing the read content of users'

Inbox folders

u2022 $INSTALLDIR\nodes\<nodename>\<clustername>\locdata for access to

6.x .key files

u2022 $INSTALLDIR\nodes\<nodename>\<clustername>\storage\user if you

are importing personal documents and categories

$INSTALLDIR\nodes\<nodename>\<clustername>\storage\mail if you

are importing the read content of users' Inbox folders

What does this mean? I really don't understand how I should "map" this folders...

Thanks

Daniele