Hello, Unregistered. The forum required a rather large update, and due to shenanigans, the production site is now at the same patch level as the development site (this is for more shenanigans to come).
We are aware that there are a number of issues with the themes, and we've temporarily disabled the MSPA Classic theme. If you find problems with the available theme, please report them in this thread and we'll work on correcting them ASAP.
Rincenote: If you find issues with MSPA Classic, feel free to report them, just keep in mind that they're going to get fixed a lot slower, and if they're functional issues, the first suggestion will be to stop using it!