adding europe map on tomtom go sd card ?please help

hi guys ive just bought a tomtom go 520 from a friend and want to put a eastern and western map on it , ive download the 8.30 europe map but i get stuck dont know how install it to my sd card .
the original map on my tomtom is only uk and roi so i dont know how to copy and paste to my sd card and get it running so please i need some help here ???
thankxx alot
Answer #1
are you sure western eu is not on there already? try searching for paris in thes navigate to part
Answer #2
well the western map is on sd card but when i tried to search for pairs as u said it dose not find it only shows uk and roi cities but i think i need to patch meta file on western map or other part of that map to get running , but i dont know how to do it depite having an easytools so please i need more help with that
thankxx for ur reply
Answer #3
I need the same instructions thanks