Anna, to get the preview picture on your folder, click on it's thumbnail & go to properties, then click customize. There will be a spot that says chose picture,then you can find the preview pic of the kit and hit apply. The picture should be on the front of the folder as long as you have set your folders as thumbnails.
I hope this made sense. I know this is a silly question but how do you enter a quote from somebody's post to mine, i can't seem to get it right?