OS X V10.6 Snow Leopard :: Extracting Email Addresses?

I am trying to extract only email addresses out of Mac Mail so I can then use as input into address book or a mass mailer app.  I have about 10,000 emails that need to be scanned.  I have found an applescript at[URL].. which seems to have the right intent but not being an applescript expert when I run it it only creates a new workbook with the correct column headings and no content. I point it at the right mailbox.  I have about 7 different mailboxes which hold emails received about a particular product which is the title of the mailbox (eg red product, black product).  I figure I can produce an excel file for each mailbox and then join them togetehr adding a new column called product and populating it for the added products. 

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