There are 3 things going on with the SKP's forum.
They have switched forum software and there is a "lost password" process to re-register,
HERE.
They also switched servers, and there have been DNS problems, which means routing problems resulting in periodic inability to connect to the new server.
The 3rd problem is SKP headquarters in Livingston, TX was in the path of hurricane Ike, and there is widespread power outages in the area.
Other than that, they are all OK and waiting for power restoration, and resolution of the DNS problems.