I haven't done much with mail merge and am having trouble figuring this
out (running word 2000):

I have to add an image containing codes to a mail merge doc for a
mailing machine that will vary based on page #. It needs a code to
indicate the first, last, and middle pages. The document will have at
least 2 pages. Ideally the image will be in the margin.

How do I determine if I'm on the first page, last page, or a middle
page?
How do I insert an image in mail merge?
Is there a way to force something to go in the margin?

Thanks,
Henry