Mulitlanguage

Rather than try to create multi-language pages within Showkase, it would be easier to create a separate site for each language.
Please see this forum thread which may help.

After creating an initial Showkase site (in one language), you could use Showkase's 'Site -> Import' functionality to import all pages from the first site into subsequent sites.

Pages and galleries would just need to be created once and then imported (copied) into subsequent sites.

You would then just need to tweak each site, translating text as necessary.