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5. Select Choose File and browse to your web folder. Select the image that you want to attach and it will appear in the attachment window. If there are more images that you need to attach, click New and add each image until you are finished. If you accidentally select New but do not attach another image, you will need to delete the "empty image" before you move one. Close the attachment box and remember to click Save at the bottom left right side of the Collection Object screen. Be very careful not to select Delete :)
6. You are done. Go back to your Web folder and drag the completed images into the Done folder. If there are images that you cannot add because of data issues, you can create a folder called Problems, and set those images aside. I usually create a text file with a list of each image problem so that I don't have to remember later.