They hardly ever update their website, so its not that surprising, the newsletter section on there is a couple of years old. I'm not even sure that the photo on the Jason's site is of the current or previous iguanas - that photo was on there at the end of last year too, so if it is the new animals then it was updated very quickly.
Just had a look at my pics from going there in December, but I didn't catch the iggys - I know I had a go, but they were far away and moving in and out of cover.