Sanity Check - XML/XSD

Ok. This is the first time I have had to develop XML and XSD files from the ground up. I need a sanity check!

My main questions are:
Am I on the right track?
Is there a better way of developing this xml?

Here are the end environment that I have to work within:
Absolutely no active server, such as PHP, ASP, .NET, etc.
Bandwidth/footprint between the server and client has to/must be kept to a extreme minimum. So no data serialization.
IE7+ client side.

All this means is that I must get the most out of my xml/xsd coding and structure. I am open to any and all constructive criticism.

The attached xml file is only the first of 7 nodes. The others will be of similar structure but will have different named elements.