Issues with tracking for meetings from shared calendars

I do not have a whole lot of experience with calendars with Exchange 2003 and have a few questions. We have a shared calendar that is used for company wide meetings and things of the like. I was just looking at the meeting and see that no one shows up under the tracking feature.

I created a test message and sent it to a few people and I get the same thing. The meeting responses are sent to myself and when I look at them they say "This meeting is not in the Calendar; it may have been moved or deleted". I am guessing the reason is that the meeting is not in my calendar, but how to I get the responses to show up in the shared calendar?