From the Tools menu, select Customize and then on the Commands tab of the
Customize dialog, select the All Commands category and then scroll down
through the list of commands until you come to the Mail Merge Helper item.
Left click and drag it onto a toolbar or the expanded Tools menu.
Alternatively, you may wish to select Toolbars from the View menu and click
on the Mail Merge toolbar. That toolbar contains buttons that will allow
you to do everything that you need to with mail merge.
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Hope this helps.
Please reply to the newsgroup unless you wish to avail yourself of my
services on a paid consulting basis.
Doug Robbins - Word MVP