You cannot legally obtain outdated title updates for Skyrim on Xbox 360. The Xbox Live pipeline only serves the latest patch (1.9.32.0.8 / TU13).
depotdownloader / Steam Console → download any historical depot (1.0, 1.2, 1.9.32). Full mod support (SKSE, SkyUI, USSEP).Warning: Downgrading on 360 via mods risks console ban. PC is the only safe, flexible platform for version control.