First post so apologies for all the usual newbie errors.
I've just acquired the reboot theme, downloaded the zip and tried to load into my wordpress site.
I get the error 'The package could not be installed. The theme is missing the style.css stylesheet.'
What am I doing wrong?
It sounds like you are trying to load the SP theme into the WP theme location. SP themes and plugins need to be located separately. If you navigate to the forum admin > themes > available themes - the correct location is shown at the top in a red box.
If you move to the theme uploader in the same menu section, you can upload the theme zip file automatically.