The first thing you have to do is find out if your company even has zed agreements. I know AS just started with them last October so they are fairly new for us. I tried many times to figure out how to book something on the zed site before I realized that we had no agreements and I had no access. That could be your problem. A lot of airlines still have only the service pass/id90 type agreements with other airlines.

I'd say if your pass bureau doesn't know anything about zed fares, you are out of luck for now.