EZ pages not working in my admin?

Hello!

I´m just beginning to use Zen-Cart and I´d like to add a sidebox with external links. I understand this could be done with EZ pages, however my admin part for EZ pages look like this

I´m using the Swedish language pack and a template calles "country blue" (purchased from EF Graphics).

I guess something is wrong in my installation / configuration?

looks like a corrupt file or 2...might look for any file with "0" bytes or re-upload all files with FTP

kobra:

looks like a corrupt file or 2...might look for any file with "0" bytes or re-upload all files with FTP

Thanks for the advice!

I´m also having problems with the shipping modules. I can see all shipping modules, with "red" or "green" status. But I can´t install/deinstall/edit any. Could this be of the same reason? Or I did something wrong?

I´ll try to upload files again. Which files should I backup to save my settings so far? (My guess is the configuration.php but maybe there is more to it?)

Only any file that you might have edited directly as settings are contained in the DB