Word Docs

[Techno]

I am trying to:

1) copy an existing document (text) into a new document (done)
2) perform a search/replace on the new document (help!)
3) save the new document

I can get it to replace etc.. on the existing document, but not the new one. Any ideas on how to do this? Really stuck!

everytime I try to execute the Content.Find.Execute() method on the new document, it returns false

aDoc.Activate();
				object replaceAll = Microsoft.Office.Interop.Word.WdReplace.wdReplaceAll;
				aDoc.Select();
				aDoc.Content.Copy();

				allDocument.Activate();
				allDocument.Content.Paste(); //paste into new doc

				Paragraph para;
				para = allDocument.Content.Paragraphs.Add(ref missing);
				para.Range.InsertParagraphAfter();

				allDocument.Activate();
				allDocument.Content.Select();
				allDocument.Content.Find.ClearFormatting();

				allDocument.Content.Find.Text = "[namehere]";
				allDocument.Content.Find.Replacement.Text = currentGuest.Lastname + ", " + currentGuest.Firstname;

				bool result = allDocument.Content.Find.Execute(ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref replaceAll, ref missing, ref missing, ref missing, ref missing);