Inserting a Text Box? - Applescript

Thanks for helping me out earlier. Now I want to insert a text box at the bottom of the page 4.5 inches wide and .5 inches tall, how do I script that in?

This is all needed as part of a workflow I am doing with automator, and once I can solve that, then I am DONE!

Here is my apple script:

tell application "Microsoft Word"

activate

set orientation of page setup of section 1 of active document to orient landscape

set mar to page setup of active document

set left margin of mar to (inches to pointsinches 1)

set right margin of mar to (inches to pointsinches 1)

set top margin of mar to (inches to pointsinches 0.7)

set bottom margin of mar to (inches to pointsinches 1.5)

set alignment of paragraphs of active document to align paragraph center

end tell

Thanks.