Updated comments on version of XML package needed.
diff --git a/Doc/tools/sgmlconv/README b/Doc/tools/sgmlconv/README
index 5351da1..f41218e 100644
--- a/Doc/tools/sgmlconv/README
+++ b/Doc/tools/sgmlconv/README
@@ -3,7 +3,8 @@
target, but is unlikely to be used.
This material is preliminary and incomplete. The XML omnibus package
-developed by the Python XML-SIG is required. See
+developed by the Python XML-SIG is required; specifically, the version
+available in the public CVS repository. See
http://www.python.org/sigs/xml-sig/ for more information on the
package.