diff --git a/assignments/week01/lab/echo_client.py b/assignments/week01/lab/echo_client.py
index b8898436..023bfba0 100644
--- a/assignments/week01/lab/echo_client.py
+++ b/assignments/week01/lab/echo_client.py
@@ -1,16 +1,34 @@
 import socket
 import sys
 
+# Create a function for requesting numbers from the users 
+def get_num():
+    """ This function takes two numbers 'x' and 'y' and returns a string """
+    list_num = raw_input(' Please enter two comma seperated numbers > ')
+    return list_num
+
 # Create a TCP/IP socket
+echo_client = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
 
 # Connect the socket to the port where the server is listening
 server_address = ('localhost', 50000)
+echo_client.connect(server_address)
 
 try:
+    
     # Send data
-    message = 'This is the message.  It will be repeated.'
+    message = get_num()
+    print >>sys.stderr, 'sending "%s"' % message
+    echo_client.sendall(message)
+
+    # receive the response from the server
+    data = echo_client.recv(1024)
 
     # print the response
+    print >>sys.stderr, 'Computed sum of %s is "%s"' % (message, data)
 
 finally:
     # close the socket to clean up
+    print >>sys.stderr, 'closing socket'
+    echo_client.close()
+
diff --git a/assignments/week01/lab/echo_server.py b/assignments/week01/lab/echo_server.py
index e2c52fc6..bdf449d4 100644
--- a/assignments/week01/lab/echo_server.py
+++ b/assignments/week01/lab/echo_server.py
@@ -1,19 +1,45 @@
 import socket
 import sys
 
+# Create a function to sum the numbers from the users 
+def num_sum(msg):
+    """ This function resturns the sum of a list of integers """
+    num_sum = 0
+    for i in range(len(msg)):
+        num_sum += int(msg[i])
+    return num_sum
+
 # Create a TCP/IP socket
+echo_server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 
 # Bind the socket to the port
 server_address = ('localhost', 50000)
+print >>sys.stderr, 'starting up on %s port %s' % server_address
+echo_server.bind(server_address)
 
 # Listen for incoming connections
+echo_server.listen(1)
 
 while True:
     # Wait for a connection
-
+    print >>sys.stderr, 'waiting for a connection'
+    connection, client_address = echo_server.accept()
     try:
-        # Receive the data and send it back
+        print >>sys.stderr, 'connection from', client_address
+
+        # Receive the data
+        message = connection.recv(1024)
+        data = message.split(',')
+        print >>sys.stderr, 'received "%s"' % data
+        
+        # Compute the sum
+        return_data = str(num_sum(data))
+
+        # Send the data back to the client
+        print >>sys.stderr, 'sending return_data back to the client', return_data
+        connection.sendall(return_data)
         
 
     finally:
         # Clean up the connection
+        connection.close()
diff --git a/assignments/week04-readme.txt b/assignments/week04-readme.txt
new file mode 100644
index 00000000..1068d743
--- /dev/null
+++ b/assignments/week04-readme.txt
@@ -0,0 +1,21 @@
+README
+
+1. Select the following link - runs book1_cgi.py
+http://block647062-yym.blueboxgrid.com/cgi-bin/book1_cgi.py
+
+2. To display the database book index - runs book2_cgi.py
+Click the hyper link INDEX OF THE BOOK DATABASE
+
+3. This will display an Index of books with their title
+Click on the title and it will display the page
+
+4. Source Code is all contained in assignments/week04/athome/src
+the following files comprise the code
+bookdb.py
+book1_cgi.py
+book2_cgi.py
+book2_wsgi_id1.py 
+book2_wsgi_id2.py 
+book2_wsgi_id3.py 
+book2_wsgi_id4.py 
+book2_wsgi_id5.py