Advertising System / tree structure system in ZEND

I will need a folder/item system programmed with ZEND/dojo framework. FRONTEND Frontend there will be questions with answers. If an answer is choosen, the user comes to the next questions. Some steps later he will get an advertisent as a result. So there has to be implemented a tree structure, compareable to a folder/item shop framework. It should be a simple unordered tree; each node can have 1 or more children. At the notes there should be a quality/sortorder (q/s). For instance having 3 children with quality 30%,40%,10% the should be sorted in frontend by 40%, 30%, 10%. The last node has also 1 or more results / articles, also with (q/s). Further on, there has to be a quality control for the result. For instance result 1 was offered 10 times and the item was remarked as good 1 time. For instance result 2 was offered 80 times and the item was remarked as good 2 time. For instance result 3 was offered 1000 times and the item was remarked as good 200 times. BACKEND The database behind the system has to be managed by backend system: Add/Delete/Modify folders -> structure (children/father) -> details (name, description, image) -> quality/sortorder Add/Delete/Modify items -> add to one or more notes -> details (name, description, image) -> qualitycontrol/sortorder Next Step will be a usermanagement / offered seperately