Actually managed to do it all on my own heehee
Pulled out the radio after pushing long thin wire into retaining lug holes, that revealed 2 torx screws. Removed the multifunction radio display again and the cover plate from the other side of the hazard warning light switch & sports suspension switch, that revealed a further 4 torx screws. Undid the 4 screws & the whole heater display/switch panel could then be removed. There are about 6 or 7 bulbs which light up the whole thing (switches as well as display) The central two are for the display.
Incidentally.... the bulbs are pretty bog standard it seems, just need to put them in the Peugeot bulb holders. Bought 2 bulbs from local motor spares place (Webbs in Stevenage) for 99p including VAT Can you beat that??
Thnnks for help anyway, hope this helps anyone else.
Chris