Did you checked section, that we described above? Because all homepages are definitely there what you can see on http://snag.gy/mK0FC.jpg
If you don`t see them, it means you have old theme version and you should update it to the latest one. But if you really want to use .xml file instead of "1 Click Demo Installer", then all xml files you can find in betheme\functions\importer\demo\homepage folder inside Themeforest package. Of course each file must be unpacked before import.
Comments
please take a look into BeTheme Demo Data section. We described this section on http://themes.muffingroup.com/betheme/documentation/#1-click-demo
If you don`t see them, it means you have old theme version and you should update it to the latest one. But if you really want to use .xml file instead of "1 Click Demo Installer", then all xml files you can find in betheme\functions\importer\demo\homepage folder inside Themeforest package. Of course each file must be unpacked before import.