You can also go to the devloper's site for S2U2 and check for updates and contact him directly with questions.
www.ac-s2.com.
Also, from the same site, try S2V. It is an image viewer and will allow you to assign any image (gif, jpg, png) to both the portrait and landscape screens for S2U2 very easily, whether they are located in your main memory or on your storage card.
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