Map Images not downloading

I was given a java project that uses JMapViewer and OSM for mapping. My problem is that the map images don’t download. When I run the code in Eclipse it looks like the JMapViewer comes up but it only shows red x marks. I get a lot of Eclipse error messages, they are all like the first one which says: “failed loading 10/174/409 Connection timed out: connect”. The only difference is the numbers, which I assume are map tile numbers.

I’m in a corporate environment which has a firewall, I’m using java 7 and Eclipse Juno EE edition on windows XP. This project was developed here presumably in a similar environment.

Any help would be appreciated.

UPDATE: The original developer responded to an email saying he was on a different network so he never tackled this issue.