I am not sure I fully understand the questions, because I don't speak Spanish, but I understand you are asking on displaying of images. The important thing here is to set the <SRC> element of 'Image' (or the <Path> element, depending which of the two exists in 'Image') to the URL of the image. See for example the screenshot in http://www.tersus.com/#Id=5093.
Regarding the invocation of an MP3 Player in Tersus Mobile App, I suggest you have a look at http://www.tersus.com/#Id=5660 and see it helps you.
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