Yes she was in a poor way, and yes the screen that don't work is the headunits.
Well after looking into it a bit closer I have found that the screen does work you just can't see anything on it because the back light has gone, when on radio if you shine a torch into the screen at an angle you can just about make out what station your on.
Have had a little look on other posts but it seems that alot of people dont repair it when it breaks but just replace it with a better unit like a Alpine IVA-W200 which is touch screen, dvd and works fine with the revercing camera.
http://www.handtec.co.uk/product.php?xProd=404
I will look in to fixing it before spending that sort of money.
As for the TOC system... well also not good, if it is in anything but 2 wheel drive then all the dash wheels flash check. Not sure I want to know whats wrong with this....