It can be confusing.
what you have to remember is:
on the reports WIND = Direction Coming from. So 230@7kts Is coming from 230 degrees as opposed to heading 230.
Runways are the opposite, and are the direction they are Facing. So RWY23 is approximatly heading 230 degrees.
Therefore, a Surface wind of 230 would mean that Runway 23 is in use ( for simple terms). Because the wind is coming from 230 and so you take off on runway 23 because its towards the wind facing 230.
hope this makes sence..
If it doesn't, i apologise, but i know what i mean
TC
Sam