You should be able to remove the Server Behavior by going to the server behaviors tab with the page open, then selecting the upload server behavior and clicking on the minus (-) button, this should remove it from the list of server behaviors and the code on the page as well. Do you get an error when you try this? Please post back with more detail about the result that you get when you do this and include before and after versions of the page in question so that I have a reference. These files will need to be posted in a zip archive.