Method and apparatus to facilitate access to a network-based publication system. In an embodiment, a user or third party affiliate of a network-based publication system uploads a style sheet or other presentation format file to a database in the network-based publication system. Thereafter, the user or third party affiliate sends a request to the network-based publication system, and the publication system uses one or more of the uploaded style sheets to format the response to be transmitted back to the third party affiliate.