WAMP - pages not displaying properly

Sorry about the vague title but I could not really thing of anything that accurately describes my problem. I have a WAMP setup on my local computer at home and when I have Apache listening on port 80 and access localhost:8080 I see my website as it should be. When I setup apache to listen on port 80 or any other port and access my IP from an outside machine I see the text from my website but it is striped of all images and formating. I'm not really sure what could be causing this as this is my first time setting on a web server. I'm really using the environment to develop the site and not host it but I thought it would be fun to try and host it and see if it could get it to work. So far I have had not luck.