Upload/Download

Quick Upload does not currently support 64-bit mode in Safari 4 for Mac OS 10.6.
To use Quick Upload, open Safari in 32-bit mode.

To set up Safari to open in 32-bit mode:

1. Select Safari, located in the Applications folder, and then choose File > Get Info.
2. Select the “Open in 32-bit mode” checkbox.

If the file format is JPEG, illustrations can be uploaded.

No.

No.
You can delete folders or the contents of folders.

Select your pictures on the My Photos page, click on the [Download] button and select a storage location for the pictures. 
The pictures are downloaded to the selected location in ZIP format.