If you have translated any or all of Engage: F3, and would like to make that translation available to the community, please email that package to me, and I will make sure it gets posted somewhere that people can find it. Depending on how much response we get, they will probably start showing up here in this forum post, but we may end up creating a dedicated Language Pack page.
If you don't know how to create a language pack, see the Language Pack Creation blog post on DotNetNuke.com.