--- a/doc/tutorial/conceptual-overview.texi	Sun Jun 29 23:14:16 2008 -0700
+++ b/doc/tutorial/conceptual-overview.texi	Sun Jun 29 23:25:32 2008 -0700
@@ -201,7 +201,7 @@
 The emacs mode line above makes it easier to get the formatting correct if you
 use the emacs editor.
 
-The @command{ns-3} simulator is licentsed using the GNU General Public 
+The @command{ns-3} simulator is licensed using the GNU General Public 
 License.  You will see the appropriate GNU legalese at the head of every file 
 in the @command{ns-3} distribution.  Often you will see a copyright notice for
 one of the institutions involved in the @code{ns-3} project and an author
@@ -451,7 +451,7 @@
 @subsubsection NetDeviceContainer
 At this point in the script, we have a @code{NodeContainer} that contains
 two nodes.  We have a @code{PointToPointHelper} that is primed and ready to 
-make @code{PointToPointNetDevices} and wire @code{PoiintToPointChannel} objects
+make @code{PointToPointNetDevices} and wire @code{PointToPointChannel} objects
 between them.  Just as we used the @code{NodeContainer} topology helper object
 to create the @code{Node}s for our simulation, we will ask the 
 @code{PointToPointHelper} to do the work involved in creating, configuring and

--- a/doc/tutorial/tweaking.texi	Sun Jun 29 23:14:16 2008 -0700
+++ b/doc/tutorial/tweaking.texi	Sun Jun 29 23:25:32 2008 -0700
@@ -747,12 +747,12 @@
 @cindex tracing
 @cindex ASCII tracing
 @subsection ASCII Tracing
-@command{Ns-3} provides an ASCII trace helper that is a wrapper around the 
-low-level tracing system.  This helper lets you configure some useful and 
-easily understood packet traces easily.  The output of a trace of a simulation
-run is an ASCII file --- thus the name.  For those familiar with 
-@command{ns-2} output, this type of trace is analogous to the @command{out.tr}
-generated by many scripts.
+@command{Ns-3} provides functionality wrapping the low-level tracing system
+to help you with the details involved in configuring some easily 
+understood packe traces.  If you enable this functionality, you will see
+output of a trace of a simulation appear in an ASCII file --- thus the name.
+For those familiar with @command{ns-2} output, this type of trace is 
+analogous to the @command{out.tr} generated by many scripts.
 
 @cindex tracing packets
 Let's just jump right in and add some ASCII tracing output to our