I am extremely vexed this morning after missing the top 8 performances on ITV2 last Thursday.
I find that ITV2 did not find a gap in their schedule over the weekend, for a repeat. I have searched my recordings from Saturday and Sunday and can only find idol gives back and the results show.
Gozzer

Definitely a misstep on ITV2's part, but rest assured you can see the performance show (and results) here:

http://www.dailymotion.com/igrecman/1/

This guy is amazing, he posts the show as soon as it's aired in the US and the video quality isn't too bad either

I am obliged! Kind regards Gozzer.