There is no easy, quick way to do your task.
Setup your booklet in Publisher, page setup, special fold, book fold, landscape.
Publisher will ask about four pages, click yes.
On the arrange menu set your margins.
On pages two and three create a text box, link them. Copy your text from Word, paste
into the text box on page two, Publisher will automatically create pages and text
boxes. (Publisher will inquire).
You will have to edit how you want the publication to look. The images will have to
be inserted separately.