Hi sir,
please explain what do you mean by (reformatted desktop)?

the theme is optimized for mobiles of course with no problems
http://mobiletest.me/iphone_5_emulator/#u=http://www.ProlificPOST.com

you can upload the icon by going to: theme panel > logo>Favicon Icons >

as shown here: http://d.pr/i/14xVp

Best Regards,