There's really nothing to it. You just give an OpenXZoneID field to any object that you want to have an ad, and then give that object a custom method like:

function Ad()
{
// use OpenX API to get ad wtih $this->OpenXZoneID
}

And then on your template, $Ad.

Then of course, you use the CMS to populate the object with its corresponding OpenX ZoneID, which is really easy to find in OpenX.

Hello do you get it going?

I am have a problem too.
In the Dev Status i receive an Error which belongs to openX.

Now i looked for the API Code, but i didn't find anything, maybe you can help me out.

Thanks.