They're really quite easy to find. It came up as my first search result on Google!
You'll need to know how to use TORRENTS of course, to obtain the files. If you're not, then maybe post a comment and ask for some help from fellow fans. Torrents are really quite easy to use.
So, the exact link where I found the download links for the Torrent, containing all of the episodes, is actually: http://www.d-addicts.com/forum/torrents.php?type=info_hash&search=d3faddf5acb95dcc8b09821676a46f129c9af04f
If that link doesn't work, then the way you get there is by going to: http://www.d-addicts.com/forum/viewtopic_55765.htm and click on "Crystal Boys Ep 1-20 + Making Of" near the top of the page, next to "Name:".
It'll take you to the Torrent download page, where you can access the torrent file. I just tried it right now, and there are a good number of peers sharing the files, so at least as of this post date, the video files should be fairly accessible.
Once you obtain the RMVB files, you should use an updated copy of VLC Media Player to play them. If you do not have VLC, then you should seriously consider getting and using it for... everything. It's amazing and free and super competent.
