The script application works really well! This is a "trick" no note down for mac beginner. Although it would be easier, if you could just start up the data files directly. But, oh well.. If there is a workaround..
You can just do it with data files! Um.. Explanation required.. I have used OSX in just about 14 days. I got used to start up applications on boot, by dragging them down to the dock.. That can not work with data files. But you can just add data files in Login Items directly..!!
In System preferences, go to the Accounts pane and then select Login Items from the top bar of the app. There's a box with a small list of things (it'll just have iTunesHelper by default). At the bottom of this box is a plus sign. Click on this sign and add whatever app or file you want to add.
Oh, thanks for the explanation, but I didn't need that. I wasn't too clear before, so you misunderstood me. I'm sorry. I meant that I (me) had some explaining to do, because I felt I should've tried to do what you explained.. Yes, that was deep.. I guess I just assumed (like kainjow ) that it wasn't possible..