fix link to latest release in plat.html

Index: plat.html
===================================================================
RCS file: /cvs/www/plat.html,v
retrieving revision 1.98
diff -u -r1.98 plat.html
--- plat.html   24 May 2008 14:52:15 -0000      1.98
+++ plat.html   30 Jul 2008 22:40:50 -0000
@@ -28,7 +28,7 @@
  Official support means that the release install media is known
  to work, that the architecture can self-compile itself, and
  that most of the basic tools exist on the architecture.
-As well, <a href="42.html">releases</a> always exist, and
+As well, <a href="43.html">releases</a> always exist, and
  there are attempts to make <a href="ftp.html">snapshots</a>
  available on a regular basis.
  </td>