problem with npc's (changing items)

Hello everyone, i've got an problem with a private server metin2, i finish the server and i have been want to change the NPC's on the game( general store, weapon dealer bla bla). I enter in navicat and i dont know anymore what to do for changing items in NPC's.. Some body did gonna help me? ;;) Thank's

you have to click on player then shop_item shop_vnum are the shops
1=weapondealer
2=fishdealer
8=eventdealer
so, bei vnum you have to write the value of the item next to the dealers 1,2,8 save and reboot.
finish

sry i don't can speak a lot of english