Reworded this file to make it clearer

UPGRADING

@@ -8,23 +8,30 @@ version.php for all the details.
 When upgrading from any previous version of Moodle, 
 all you normally will need to do is this:
 
-1a) Update the source files using CVS
+1)  Make a backup of your current Moodle installation 
+    just in case something goes wrong and you need 
+    to restore the older version.
 
-    or
+2a) If you are using CVS, just go the root directory
+    and type "cvs update -d" (or whatever the equivalent
+    is on your non-Unix server).
 
-1b) Make a backup of the current working installation 
-    files, then put the new files here.  Make sure you 
-    copy your old config.php back here (or make a new 
-    one by editing config-dist.php).
+                       OR
 
-2)  Login as the admin user and visit /admin using a 
-    web browser.
+2b) Remove the current installation, and then unpack 
+    the new installation in the same location.
+    Make sure you copy the config.php file from your 
+    old installion to the new installation (or make a 
+    new one by editing config-dist.php).
+
+3)  IMPORTANT: Login as the admin user and visit 
+    http://your.moodle.site/admin using a web browser.
 
 If all goes well, your databases will be upgraded to 
 suit the new files, and you can go on using Moodle
 normally.
 
-If you have problems, let me know.
+If you have problems with this procedure, let me know.
 
 Cheers,
 Martin