The resident expert, the most excellent David Bartosik MVP, has indicated
many times that the codes are way too different to try to use Publisher code
in FrontPage. You could potentially build your collage and convert it to an
image, and then use the image in FrontPage, but I suspect you would not be
happy with the results...and you would still ultimately need an image
editing application if you are serious about building a decent site. So, I
suggest that you invest some time learning an image editing application.
Here are two freebies that aren't that hard to learn...especially if you
take the time to read the Help sections:

http://www.irfanview.com/

http://picasa.google.com/index.html

DavidF