I use and recommend "PC Inspector File Recovery", but even that doesn't always find lost files.
What I wanted to say to you, is always run your recovery program as "administrator" - that makes all the difference between success and failure as far as the above mentioned program is concerned; maybe it will help you too.

>>No imprint, no physical address, no telephone number?

This is from Domain Tools:
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.. admin edit:
  contact details removed as they were the private address of the owner.  They have since updated the details on their WHOis data

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