I googled around a bit, here's what I found:
This page mentions an interview with Tim Altic; does anyone have this issue of "Skateboard!"?
They also feature a pic of Tim in the over vert Orange half pipe.
Here are some nice comments about the skate parks he builds.
Then I found pics and "fly through" flicks of the Great Falls skate park. It looks really great. Tim, did you participate in the design of that park?
Then I found a list of "Vertical Roller Skaters" with links.