Can any tell me where i can download shell/keyfuel station pois for Garmin Nivi GPS, and how to do it please 
You can get Keyfuels from here
maft.co.uk/garmin/download.htm
Just unzip them to a new folder , i would call it Garmin poi or something like that .
You should have the poi loader on your disk if not its here
www8.garmin.com/products/poiloader/
just follow the prompts 
, all it will do is ask you were the poi’s are , point it to to folder you put them in and it will do the rest for you 
I dont have a link for the Shell ones , sorry m8