Tutorial 'Adding thumbnails' queries

Hello all,

I’ve made a photo gallery using this excellent tutorial, which i was very happy with.

There are just two things which i would like to change and can’t work out.

  1. I would like to add a plus symbol or arrow to the end of the thumbnail array when there are more images in either direction, but i would like it to disappear when you have reached the beginning or end of the array, is this possible?

  2. When images are loaded into the empty movieclips they are set by the top left registration point, is there a way of loading them so they load from one of the other corners or the centre of the image?

Thanks for having a look, any help would be hugely appreciated.