Have to agree about this no singer rider thing, its a quiet day in the park today (not unexpectedly), staff were riding on it, to make up pairs.
As far as the change in theme goes, when I went as a teen (so 15 years ago) it was X:\, and I honestly don't recall a theme, I like the idea of being lost in a computer, it seems right for that time period and name. Today its more of a trance theme, alot of club lights and Darude Sandstorm playing on the way in, love Sandstorm, however when I first rode X:\ it was alot darker, and a better ride for it.
Of course it could be memory playing tricks on me
Finally didn't Alton Towers have an ice show about people inside a computer?