🚀 go-pugleaf

This is a piece of code posted by Mr. Lebeau in the discussion "Adding 
news messages to a tree" (2004). I have some problems translating this 
into Delphi-code. (I'm not very familiar with C++)
Espesially the: " if(node) " - part.
If(node) /what/?

(PS - I don't need help with the FindParentMessage-function earlier i 
that thread)

TStringList *Messages = new TStringList;
     try
     {
         TStringList *XOverData = new TStringList;
         try
         {
             int ArticleIndex, ByteCount, LineCount;
             AnsiString Subject, From, MsgId, References, ExtraData;
             TDateTime dtDate;
             TTreeNode *Node;

             // use whatever article indexes you are actually downloading
             IdNNTP1->XOVER(AnsiString(IdNNTP1->MsgLow) + "-" +
	    AnsiString(IdNNTP1->MsgHigh), XOverData);

             TreeView1->Items->BeginUpdate();
             try
             {
                 for(int x = 0; x < XOverData->Count; ++x)
                 {
                   									 
IdNNTP1->ParseXOVER(XOverData->Strings[x],ArticleIndex,
		Subject, From, dtDate, MsgId, References, ByteCount, 				LineCount, 
ExtraData);

                     Node = FindParentMessage(Messages, References);
                     if( Node )
                         Node = TreeView1->Items->AddChild(Node,Subject);
                     else
                         Node = TreeView1->Items->Add(NULL, Subject);
                     }
                     Messages->AddObject(MsgId, Node);
                 }
             }
             __finally {
                 TreeView1->Items->EndUpdate();
             }
         }
         __finally {
             delete XOverData;
         }
     }
     __finally {
         delete Messages;
     }

Thanks in advance!