It seems to be an environment problem.
Could you paste the maven error trace? We may look for some useful information to help you.
Did you try to execute other examples? And did they work?
You can obviously download this pom file from IONA's repository at http://repo.open.iona.com/ where Maven is going to get it, copy it to your local repository and then run Maven with the -o (offline) flag. However, you'll find that there are a lot more artifacts missing and this will be hard to get/keep working.
I have no idea how to configure a PAC script for Maven. I would suggest you get in touch with your local administrator and ask about the correct IP address and port for a proxy server and configure that.