This works fine for when I have a series of my own tools. I am having trouble trying to add ESRI tools to my toolbar. For example, zoom commands, draw commands etc.
Is there a way to do this? Do I need to edit the XML in VB Express?
You should be able to use the ProgID to add the ESRI command or tool. For example, for an ArcGIS 10 add-in, you would edit the toolbar section of Config.esriaddinx to add a Button element mapped to an ESRI tool. To add the Zoom In Tool, you would add <Button refID="esriArcMapUI.ZoomInTool" />, as shown in the example below: