I've googled. I've posted at the MAMP site. Still no luck.
I have MAMP Pro running just fine. I go to another computer in the house and, not so good. When I go to http://192.168.1.100:8888/wordpress/ I see text for the site, but the graphics don't load at all. Any click sends to http://mysitename:8888/wordpress/link and an error message (from the browser itself, it looked external)
FWIW - I am on a Snow Leopard Mac Pro, and just trying to see the one site from other machines in the house. I got this far, but now need an "idiot's guide" to move along.