How to make domed intarsia cabochons

The link isn't working because George himself probably took down the link when he left the forum early last year. 
Since those asking are new to this forum, George was the founder of this forum and then due to family/personal reasons he left this forum and Aaron (NuevoMundo) took over.  If you find any more stickied postings by him (Or anyone else) with broken links, by all means drop one of us on the moderation team a message.
Since the link isn't working I'm going to unsticky this topic.