I am having problems importing messages from my WIndows Live Mail to my Thunderbird. The instructions say go to "Tools ImportExport | Import all messages from a directory | Also from its subdirectories." However in my Thunderbird l have tools, import and then it takes me to a wizard which says "This wizard will help import messages....." and when l select 'mail' as the type l wish to import it asks for a type of mail l want to import. Windows Live Mail is not in the list. Do you have any instructions or advice?