You can't go home again. The breakage to the Final Cut Suite done by multiple OS upgrades is un-doable. Motion and Compressor have advanced on their own.( LOVE LOVE LOVE the keyframe-able draw mask tool in Motion, BTW)
If you're planning to move, and you just can't stand the FCPX setup, then Resolve and Premiere are your next, most-7-like choices. Adobe provides a more complete ecosystem of tools, including DVD authoring, if that's important. Find your bliss.