My 'import WAB' bug was solved by updating the 'Windows Live Communication Platform' - it seems that this Dell Vostro 3300 was delivered with an old version pre-installed.
However, along with thousands of other people it seems, I still kept losing 'sent' e-mails from WLM, so I sent off for the 'Australian Fix' which was waiting for me this morning when I checked my e-mails. Downloaded it, unzipped it and followed the instructions.....I now have OE6 back with a UK English spellchecker, so can forget about the POS Windows Live Mail until the Gates-geeks have unbuggered it!