Iconpackager Folder Icons

Hi Folks

I'm hoping you can help with a small issue i'm having with Iconpackager.

I have downloaded the free trial as i was keen to change the look of my bland and yellow windows 7 folder icons.

I had found these create black folder icons by Drawder Corzo on deviant art so downloaded them. Within the file is a very helpful readme explaining how to apply the icons, mainly he said use iconpackager and it's easy. And so it seemed at first but here i am on day two and half ...