On the face of it you should be able to create a catalog/directory merge to
a new document placing the fields as you require them. The new document with
the addition of your revised field names as the first row will be a revised
mailing list.
Alternatively, convert the text to a table and move the columns around. You
can leave the data file as a table.

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Graham Mayor - Word MVP
My web site www.gmayor.com
Word MVP web site http://word.mvps.org
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> I have a mailing list in a comma delimited format which I
> can successfully import into Word but the name field has
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> space and then the last name without any comma in the
> field?