Files
Displays a file browser where you upload a file from your computer or select a previously uploaded file from your server.
Images
Images uploaded into an image field are handled differently than images uploaded in the WYSIWYG.
Clicking Upload displays a file browser where you can select an image. Choosing Browse will present you with thumbnails of images already uploaded to your BigTree site. The image you choose will be processed according to template settings when the content item is saved—not when the image is initially uploaded.
Photo Gallery
Allows for the uploading of multiple images. Selected images may be flagged with a caption and re-ordered through a drag-and-drop interface. Image processing occurs when the entire content item is saved—not when each individual image is uploaded.