This weekend Google switched off the option to modify any album using their Picasa API. The tool I provided basically stopped working from on day to another. You can't switch the visibility of an album. Does this mean you can't use new albums with Event Gallery? No! It still works. It just requires you to perform one more step. You need to allow Event Gallery to access your album data. Afterwards you can even use those protected albums! This was not possible before. Let's see how long this works.
If case you have a valid subscription you can already try it by getting the latest build from here Alpha Release.
Update: Event Gallery 3.7.0 is available and can access protected Google albums.