2. Insert the image (.jpg) to your MS Word file:
Insert > Pictures > Select the Picture to Insert
3. Move the Image behind the Template table
With the image selected: Format > Wrap Text > Behind Text
4. Force the size to fill the full page:
Align with the left and top side of the page: Right click > Format Image
In a new window, select the Size Tab:
In a new window, select the Size Tab:
Height - Absolute - 11 inches
Width - Absolute - 8.5 inches
5. Have the image ignore your Margins
With the image still selected, Format > Position > More Options
In new window, select: Alignment Left relative to Page
and Alignment Top relative to Page
Uncheck Layout in table cell