You should now have the plugin and scripts installed and restarted InDesign.
Open an InDesign document.
If the installation was successful you will see a new menu in the menu bar, "KPS Baker Export". From this menu choose, "Show / Hide Palette". You should now see the export palette.
Press build to build the complete document or preview to see the current page. The preview will be displayed in your default browser.
The files created by the plugin can be found in your documents folder in 'KPSExport'. There will be a folder with you document name, inside here you will find the html files and the assets created by the export.