CObList operator=

Hi All,

I'm trying to create a link list using MFC CObList. The list is loaded
ok, but now I need to create another list (nested) inside that list.
After making the list I have to assign it to a member variable (of
type CObList) in the parent list.
How can I write the operator= for CObList?
or Is there a better way.
Here's a sample (this is just a pseudo code):

class CNestedData : public CObject {...} //the nested node
class CNestedList : public CObList  {
      CNestedList &operator=(const CNestedList & nlist);
}
class CData : CObject {
      //my other data of vary type (int, double, CString...)
      CNestedList *nestedList;
}

and create the list like this:
Nested List:
      CNestedData nestedData(...); //inserting data
      CObList nList;
      nList.AddHead(nestedData);
Parent List:
      //inserting data and copy the
      //nested list to nestedList
      CData thedata(..., nList);
      CObList thelist;
      thelist.AddHead(thedata);

How do I insert the nested list into the CData list
("..." means other data I have to insert to the list).
I tried to write the operator= like this:
(This function works but the nested lists are added up)
CNestedList& CNestedList::operator=(const CNestedList& nlist)
{
      CNestedData *theCopy;

      if(clist.GetCount()){
            POSITION pos = clist.GetHeadPosition();
            while(pos){
                  theCopy = (CCopy *)clist.GetAt(pos);
                  AddHead(theCopy);
                  clist.GetNext(pos);
            }
      }
    return *this;
}

I'm fairly new to MFC. Thanks for any help.

TT.