2007 Sorting Meeting Responses

I work in an administrative office for a university department. We are in the process of learning how to better use outlook. We sent out a meeting request and have looked at the tracking results. I've got a couple of questions about things we want to do from there.

1) Can I sort the people I've invited by their response? i.e. accepted, declined, none.
2) Can I send a message to only the people who have accepted or who have not responded?

Thanks for your help!