Yes, I am aware of the problem. The problem lies in the browser of the MAC. It does not matter which MAC product you have. If you are using the Safari browser on your MAC, you will experience problem with certain websites. It is not just the Olivia website that is the problem, but it could have been alleviated if the site would have been tested with multiple browser in mind. That said, it is has much of the problem of compatibility from Apple as it is from from sites that are being hosted.
Yes, I am an IT person at a major centre in Vancouver Canada, and have ran into this problem with my MAC. The other way around this would be for your to download FireFox 3.0.5 at this address http://www.mozilla.com/en-US/firefox/
This solution is only a bandaid and not a problem solver. Although you will be able to do all the thing you would like to do that you may not be able to do with Safari on your MAC for the time being. It is still a good idea to let Olivia know and to also let Apple support know of the issue.
I hope this help you and I want to wish you a Happy New Year and all the best to you.
Cheer,
Nicole