This is a follow up to setting up virtual box on a mac.
The whole reason for windows on a mac is to test web sites. I needed to access the local host.
It is as simple as using your ip address. I had to dig a bit to find mine because my router assigns me one.
Open terminal and run:
copy the inet setting and paste it into virtualbox browser.
Thats it, you now have access to your local host from virtualbox.