updating install.html (see bug 4759) Changed some links.

Should that file really be there?

lang/en_utf8/help/install.html

@@ -47,9 +47,7 @@
     one of the few webhosts that does not support these features ask them why, 
     and consider taking your business elsewhere.</p>
   <p>If you want to run Moodle on your own computer and all this looks a bit daunting, 
-    then please see our guide: <a href="http://moodle.org/doc/?file=installamp.html">Installing 
-    Apache, MySQL and PHP</a>. It provides some step-by-step instructions to install 
-    all this on most popular platforms.</p>
+    then please take a look at <a href="http://docs.moodle.org/en/Administrator_documentation">the administrator documentation</a>.</p>
   <p>&nbsp;</p>
 </blockquote>
 <h3 class="sectionheading"><a name="downloading"></a>2. Download and copy files into place </h3>
@@ -418,7 +416,7 @@ php_value post_max_size 2M
     for them using the &quot;Add a new user&quot; on the Admin page.</p>
   <p>Once done, the course is ready to customise, and is accessible via the &quot;Courses&quot; 
     link on the home page.</p>
-  <p>See the &quot;<a href="./?file=teacher.html">Teacher Manual</a>&quot; for more details 
+  <p>See the &quot;<a href="http://docs.moodle.org/en/Teacher_documentation">Teacher Documentation</a>&quot; for more details 
     on course-building.</p>
   <p>&nbsp;</p>
   <p align="center"><strong>Happy exploring and happy Moodling!</strong></p>