Hi, Trellis
I suppose that you configurated everything needed for your server runs. If not, search in the forum for the right configuration.
Anyway, the file rsu-kro-rag-lite will be used to update the kRO client (for new official fixes, sprites, maps, textures, etc). However, you'll need a custom GRF for english descriptions and custom stuff (like any private server ), as well a compatible LUA (again, search in the forum for any questions about it). Aside that, any customs that you put in your server need a custom patcher, to keep them up to date in your own updates .