Anne – this is certainly a setup issue on your WordPress installation since I had no issues using the .po file sent by you to translate the Wired site to Norwegian. Since I had a multi-site install, all I had to do was to set the language to Norsk bokmål in Settings->General tab. All of your translations including the ones done for contact form showed up for me.
You just have to ensure that the language chosen is Norsk bokmål in Settings > General > Site Language. If you still have trouble, pls share a temp login to the site in a private message here, we can debug further. Thanks