Photo albums creation is very easy :

 Automatically import folders content with the "Ideas / Import folder" menu :

• Keep only image file suffixes
• Eventually check the "Recurse through subfolders" option
• Check the "Make album" option : WIT will also create thumbnails and treat any image as a separate idea.

You can also do it manually, and locally :

 Automatically import images from a folder ("Ideas / Import images" menu ).

 Create a thumbnails table with the idea subtree including the imported images ("Ideas / Build thumbnails" menu ).