In my direct link, there is only one version, are you using that one? The other 767s are the longhaul versions but hopefully should be obvious. The site works fine for me tonight.

Rows 12 to 17 inclusive are set at the old Club Europe pitch, and are highly sought by those in the know. As indicated by thebasource, they have an extra 10 cm of pitch over row 18 and back, which is normally allocated to EuroTraveller. However though CE can (rarely) extend to include row 17, usually it is a lot shorter, it can even only extend to just the first few rows at the front on FCO or midweek ARN.

Now BA will only decide the curtain position at a late stage, the so called Curtain Roulette, so you need to pay attention to the available seating just before and just after T-72. Until that time they block the front of ET to prevent too much seat shifting. If the curtain ends up at row 9 - quite often - then if you are a couple you need to nab something like row 12 or row 15. But keep watching just in case CE goes back further. As thebasource indicates, row 13 has a misaligned window (not badly so though).

Very little of the above is at all obvious from seatguru.