Here is an email address for them, taken off of the castboolits website.
They are located in Provo, UT and basically make the moulds afterhours. I hear they just got some new equipment so now they will be able to make more moulds, faster. Their quality is top-notch. Great people to work with and have great prices.
I currently have a mould on order with a group-buy for a 225-55 and about a dozen others on my "wish I had more money to get more moulds with" list.
Let me know if you neeed any additional contact information for them. They are actually only a few miles from my home and I plan on picking up my mould when it is ready.