How do i see the nodes on the map.. i took herbalism it said theres soupossed to be diamond nodes on map and i can't see them when i stand near a herb i come across do i need to activate it or put it on like you do in WoW >_>

No this is a passive ability.
Foraging alone should always light up herbs on your map.
If it is not then try the recovery button when you log in.
Ive noticed there a very many graphics issues with this game it could be due to something of this nature.

you just go to your map icon thing that shows all icons of certain things on map and itll be there, like how u can show mailbox and banker etc on your minimap.

yes its like wow kinda.