Should be in a Category only Pordukt be present, would not it be really nice, if you get into an almost empty area category, if you click on the category, but when the single item by clicking on the category opened directly would.
This is also feasible!
It helps here is a small extension, which can be obtained from Magento. It is called
Single Product Category Redirect (is not officially with Magento CE Version 1.4 compatible with these works but also with 1.5 and 1.6.)
Exactly happens after installing the, what was desired. The product will be opened directly. Should be more than one product in a category, Nothing will change.
Used in 1.4.1.1
Update:
The extension also seems perfectly Magento CE Version 1.7.0.2 to function, if they are on the Magento Connect Link
http://connect20.magentocommerce.com/community/Desitex_Singleproductcat
installs.