The direct “Download Image” button for downloading an image into the Sorcerer’s Apprentice App had to be disabled in versions beginning with 2.4 in order to comply with Apple’s App Store guidelines regarding redistribution of copyrighted material.
It will take a few more clicks, but you can still import these images. Click on a card image on this page from Safari on your iPhone and then select ‘Save Image’. (Actually you can click on the card to go to a higher-resolution version and then download that one if you prefer). After saving all the images you want to import, launch the app, and for each card you can go the card checklist, select the card, and select ‘Add Card Image’. In the pop-up source list, choose ‘Select from Library’ and then scroll to and select the appropriate photo.
Happy spell casting!