The mailmerge process envisaged in the link entails two mailmerges:
• a directory merge from your Access DB
• an email merge from the Word file generated by the directory merge.
I don't know what your Attachment1 & Attachment2 have in them, but they can't be connected to your Access DB when they are merged. It sounds rather like you need to generate the merges of these two documents, then split them into individual letters that the directory merge's table references so that the email merge can find and attach them.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Thanks for your further guidance. I think I am understanding a little bit better whats going on!
I have got my master mailmerge directory document with the 3 test email addresses but I am still having a problem understanding how I can get my 2 attachments to identify with each individual. As I explained earlier, my original 2 attachments drew their data from the same query in Access. The fields in both included names & addresses & donor numbers (as well as the email addresses). But if, as you suggest, I need to split the results of the merging of these 2 documents into individual letters(emails) and forms I have a problem! When I complete the merges the results of each are in one single file. Can you guide me as to how these can be split into individual letters(emails) & forms (identified by the email address) and how can they then be linked (via the email address) to the email address in the master directory file?
I get the impression that what you have suggested is likely to solve my problem - if only I could actually apply it to my files!