First, choose a 'different first page' layout for your document. Then insert your logo etc. into a textbox in the page header and apply a 'square' or 'tight' wrap format to the textbox, which you then drag to the required position.

The body text will then wrap around the logo, which will only appear on the first page.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Yes but then the logo is not in the header box and anyone can delete it if he wishes. We wish to prevent that, since a lot of people are going to be using this template.