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[datiswous]

Well thanks now all work well!

Another question, in the section "http://get-simple.info/extend/all_themes.php" where I be able to see a demo of the theme listed?

A demo is entirely optional. Some people host a demo site themselves. A lot of these themes are actually conversions from html-templates, for example from here: http://www.freecsstemplates.org/. This means there's already a demo for it.

In my opinion the preview images of themes are way too small. It should have a bigger preview-image option.