uh yeah, you don't need to do any of that - just use the SFTP program (WinSCP or whatever) that you used to upload the files to do this: right-click on the main application file in the app's directory (e.g. the file named Weather or Maps or Notes) and set its permissions so that Execute (or X) is enabled for all three User Group and the other one (I forget what the third one's called) and then you'll have done the same thing that chmod command line thing is trying to do for you.