Hi, I have read the other thread, but my problem is different. I have my content type "AB" with some informations (say a "download file possibility") that will be avaible only to the users that have buy the access to this informations. My the idea is to call a e-commerce, ask if the user have buy the access and if "yes" permit to the user to access to the informations. I have thinked this way: in a hook_nodeapi() where $op = "view" verify that the user can access to that content (via ecommerce): if yes I change the $node->body with other info reserved for who buy the content, otherwise I change the $node->body with an info about how to buy the content. Is this the correct way ? Are there better solutions ? M. -- Michel 'ZioBudda' Morelli michel@ziobudda.net Consulenza sistemistica in ambito OpenSource. Sviluppo applicazioni web dinamiche (LAMP+Ajax) Telefono: 0200619074 Telefono Cell: +39-3939890025 -- Fax: +39-0291390660 http://www.ziobudda.net ICQ: 58351764 http://www.ziobuddalabs.it Skype: zio_budda http://www.ajaxblog.it MSN: michel@ziobuddalabs.it JABBER: michel@gmail.com