Node reference fields are not rendered with CCK integration module enabled

The integration module jwcck has one function, a nodeapi hook, which attempts to theme the video inside the safe value of the field. In nodereference fields, however, the safe value is not a string, but an array of data to reference a node. Thus the theme function is replacing the array with a NULL value and the referenced node is not being rendered.

Attached is a patch that will add a conditional exception if the 'safe' value is an array.