Change the first part to
Code:
Sub ChangeCaseTagged()
Dim oPara As Paragraph
Dim oRng As Range
For Each oPara In ActiveDocument.Range.Paragraphs
Set oRng = oPara.Range
oRng.End = oRng.End - 1
If oRng.Text Like "<S*>*" Or _
oRng.Text Like "<FG>*" Or _
oRng.Text Like "<TC>*" Then
If Len(oRng.Text) > 0 _
Then TrueTitleCase oRng
End If
Next oPara
lbl_Exit:
Set oPara = Nothing
Set oRng = Nothing
Exit Sub
End Sub