Have a look at British Gypsum Site Book. Vertical is normal at 600mm centres with horizontal battens at top and bottom. Use a full sheet of plasterboard between floor and ceiling. If your ceiling is higher then 2.4m you can get longer lengths. Use wedges below the bottom of the board etc.
With foil backed board, I'd seal the joints in the batten frame (or at least avoid large gaps) to prevent vapour getting behind the board. The bottom is more important to seal as it is exposed to room air through gaps below the skirting board. Also, the bottom of the wall is generally colder and more susceptible to condensation.
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