The desired scenario works as expected in Sitefinity 5.0, and it should also work in 4.4. You may download a trial of both version and check how this works. You can add second language from the Administration -> Settings, set it as default, and then remove the English. Even if we allow adding of more languages for the public side, you can still create/edit pages in the default culture only. The upgrade to 4.4 and 5.0 is fairly easy, so I hope that this is the solution.
the Telerik team
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