If you want to include files with an item, this is possible. When you add or modify and item, there is a button Add a file. If you press this, the system will pop up a standard browser upload window where you can select a file to be uploaded to the server. When your user clicks on the filename while viewing and item, the file will be downloaded to their computer using the standard browser download functions.

Please note: After you select a file to upload and the popup window closes, the file is not available for your users until you hit the OK button for the item page. This tells Obliquid that you want to accept all the changes and additions for the item. If you do not do this, then the file might be orphaned on your server. It will not harm anything, but it will take up space.