The sedona change internally a few years ago the old version (with the spoiler thingy on the bonnet (I know what I mean) has a double back row seat and possibly only two across the middle (don't hold me to that).
We have the newer sedona and I love it, despite the fact it has a 2.9 l disel engine I still only seem to fill up once every 3 weeks once a month (although it is pricey to fill up).
My most favourite thing is the slide-y doors which are electric on the lS version (and above) which you can activate when walking towards the car with hands full of children and stuff (lots of comments in car parks about that!). It also has three full seats across the back and 2 in the boot four of which have isofix (although the seats are heavy and fiddly to get out they seemed a better sixe than the galaxy I test drove).
Oh and the middle seat isn't reversible on mine but as we can walk through the car (front to middle that never bothered me.
HTH with be around if you have any further questions...
Thanks. Isn't it funny how different people's priorities are? I'm not in the least bothered about safety scores, I just want spinny middle seats! Have worked out that the Sedona ones don't spin and only the newest (and out of our league) Voyagers do.