Welcome to the forum Peter.
The Learning Guide that came with your version will walk you through building models. Also there is an on-line learning guide when you click on "Help" on the tool bar.
Both will walk you through building your first models and give you a good foundation about Monarch and it's capabilities.
If you have questions after working through some of the ones in the guides, please post back and we'd be glad to offer help on building models, etc.