OK Dean,
found the solution ... I thought.
At first it was a cache problem. All queries are cached and the output therefore was the same despite my changes. I would like to stop caching but found no way. Set the duration to zero didn't work.
The stranges stuff was from the page-template which is used also to display an item.
So I changed it that there is only the variable left
After some hours I'm now able to display only the picture. But, there's always the "but", when you click on that picture you get only the picture and not the whole product informations ...
Any Ideas?
Kai