App for files cached adobe air

I need an app, like an FTP client. The intention is to create local copies, updated every 15 minutes, RSS and xml files. These files also contain information from texts and url paths of images that should be copied and kept in a local folder with the standard Dickey RSS or XML file (which will still determine the default folder). So I can easily point out which XML and RSS should be copied, it would be useful if this application is guided by an XML standard that would be on my remote server, where would all the links of the RSS or XML that should be copied. This will help if I need to add more files to be copied. EX: [login to view URL] [login to view URL] that contains the rows: "[login to view URL]" "[login to view URL]" What I want is to be made a local copy of xml file, along with all the images and videos that each contains xml. And every 15 minutes a new appointment is made online to see if there aqruivos update. If upgrading, the resources that are saved (images and videos) in the previous version of the XML should be deleted because it is no longer listed in the XML on the server. And the local XML should be subescrityos the new version. All based on file date online. This application has to work without appearing to the user as if it were in the windows tray in the background. The application will have a version for android, and one for windows. Also need to be able fazr an auto-update that application, if we have to change something in the code and need to upgrade the version installed on the clients, with no user intervention. The goal is to make SWF files created in Flash, can run news with pictures and videos and even text that does not have internet available, creating a cache of the latest version available for use locally.