Thanks for the tip. But I only found white little spacers. 4 each of slightly different size. 4 are just round tubes, the other 4 are hex shapes with threats inside:
https://www.dropbox.com/s/ealtjeu69idm2jv/20121121_124336.jpg
Are those correct and if so how do I use them exactly, since 4 are longer than the other 4.
Edit: Never mind, found the 8 black spacer pieces. Thanks.