diff --git a/tools/unicodetools/readme.txt b/tools/unicodetools/readme.txt
index 65f23a99182..f9cda26326b 100644
--- a/tools/unicodetools/readme.txt
+++ b/tools/unicodetools/readme.txt
@@ -1,3 +1,16 @@
+/**
+*******************************************************************************
+* Copyright (C) 1996-2001, International Business Machines Corporation and    *
+* others. All Rights Reserved.                                                *
+*******************************************************************************
+*
+* $Source: /xsrl/Nsvn/icu/unicodetools/Attic/readme.txt,v $
+* $Date: 2003/03/17 23:03:13 $
+* $Revision: 1.5 $
+*
+*******************************************************************************
+*/
+
 WARNING!!
 
 These directories contain some Unicode tools used to build various files,
@@ -18,13 +31,29 @@ Instructions:
     public static final String BIN_DIR = DATA_DIR + "BIN\\";
     public static final String GEN_DIR = DATA_DIR + "GEN\\";
 
-Make sure that each of these directories exist. Also make sure that
+Make sure that each of these directories exist. Also make sure that the following
+exist:
+
 <GEN_DIR>/DerivedData
 <GEN_DIR>/DerivedData/ExtractedProperties
 
 
 2. Download all of the UnicodeData files for each version into DATA_DIR
-The folder names must be of the form: "3.2.0-Update"
+The folder names must be of the form: "3.2.0-Update", so rename the folders on the Unicode site to this format.
+
+2a. If you are downloading any "incomplete" release (one that does not contain
+a complete set of data files for that release, you need to also download the previous
+complete release). All of the N.M-Update directorys are complete, *except* for 4.0-Update,
+which does not contain a copy of Unihan.txt.
+
+
+2b. If you are building any of the UCA tools, you need to get a copy of the UCA data file
+from http://www.unicode.org/reports/tr10/#AllKeys. The default location for this is:
+
+        BASE_DIR + "Collation\\allkeys" + VERSION + ".txt".
+        
+If you have it in a different location, change that value for KEYS in UCA.java, and 
+the value for BASE_DIR
 
 
 3. For each version X (like 3.1.0), run