Looks like the website is back up again. Looks like it's been updated.
Hope they're not out of business. I've always had good service from them. I wouldn't make too much out of not being able to get in touch with someone on the phone. Hobby businesses are small places and there isn't enough time to be answering the phone all the time. Many of the small companies are part-time businesses as well, so the owner gets to what he can for the time he has. I don't ever expect to get something right away from a small kit manufacturer. Especially in this day and age...