Right.
With some of these things, it's probably best to start at the beginning so let's do this 
Please download the 2 firmware files I've attached and save them to the root of your C drive.
I assume you have already downloaded the FLIP package from the Atmel page here: http://www.atmel.com/tools/FLIP.aspx
Next, unplug the Wifi shield from the Arduino and short out the jumper on the Wifi board to put it into programming mode.
Connect the shield to your PC via USB and then start up a command prompt.
In the command prompt, change directories to the path where you've installed the FLIP package (i.e. cd C:\Program Files (x86)\Atmel\Flip 3.4.7\bin) and execute the following command:
batchisp.exe -device AT32UC3A1256 -hardware usb -operation erase f memory flash blankcheck loadbuffer c:\wifi_dnld.elf program verify start reset 0
Check if all jobs have passed. If not, post the output here.
If all jobs have passed, reset your shield by pressing it's reset button and then continue to the next command :
batchisp.exe -device AT32UC3A1256 -hardware usb -operation erase f memory flash blankcheck loadbuffer c:\wifiHD.elf program verify start reset 0
Check if all jobs have passed. If not, post the output here.
You're done with the update.
Re-connect your shield to the Arduino and plug in to PC via USB.
Upload the following sketch making sure you change the SSID and insert your password to fit your wireless network settings.
I've quoted out the IPAddress for now so your router can assign an IP address for you. (make sure DHCP is enabled on your router)
If you'd like to assign your own IP, feel free to unquote the "//IPAddress ip(190, 160, 0, 50);" and "//WiFi.config(ip);" lines respectively.
/*
WiFi Web Server LED Blink
A simple web server that lets you blink an LED via the web.
This sketch will print the IP address of your WiFi Shield (once connected)
to the Serial monitor. From there, you can open that address in a web browser
to turn on and off the LED on the selected pin.
If the IP address of your shield is yourAddress:
http://yourAddress/H turns the LED on
http://yourAddress/L turns it off
This example is written for a network using WPA encryption. For
WEP or WPA, change the Wifi.begin() call accordingly.
Circuit:
* WiFi shield attached
* LED attached to a pin
created 25 Nov 2012
by Tom Igoe
*/
#include <SPI.h>
#include <WiFi.h>
const int ledPin = 4; //Pin where LED is connected
char ssid[] = "your netword SSID here";
char pass[] = "your password here";
int keyIndex = 0; // your network key Index number (needed only for WEP)
int status = WL_IDLE_STATUS;
//IPAddress ip(190, 160, 0, 50);
WiFiServer server(80);
void setup() {
Serial.begin(9600); // initialize serial communication
pinMode(ledPin, OUTPUT); // set the LED pin mode
// check for the presence of the shield:
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
while(true); // don't continue
}
//WiFi.config(ip); //used if you want to assign a static IP
// attempt to connect to Wifi network:
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to Network named: ");
Serial.println(ssid); // print the network name (SSID);
// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
status = WiFi.begin(ssid, pass);
// wait 10 seconds for connection:
delay(10000);
}
server.begin(); // start the web server on port 80
printWifiStatus(); // you're connected now, so print out the status
}
void loop() {
WiFiClient client = server.available(); // listen for incoming clients
if (client) { // if you get a client,
Serial.println("new client"); // print a message out the serial port
String currentLine = ""; // make a String to hold incoming data from the client
while (client.connected()) { // loop while the client's connected
if (client.available()) { // if there's bytes to read from the client,
char c = client.read(); // read a byte, then
Serial.write(c); // print it out the serial monitor
if (c == '\n') { // if the byte is a newline character
// if the current line is blank, you got two newline characters in a row.
// that's the end of the client HTTP request, so send a response:
if (currentLine.length() == 0) {
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
// and a content-type so the client knows what's coming, then a blank line:
client.println("HTTP/1.1 200 OK");
client.println("Content-type:text/html");
client.println();
// the content of the HTTP response follows the header:
client.print("Click <a href=\"/H\">here</a> to turn Ludgy's light ON
");
client.print("Click <a href=\"/L\">here</a> to turn Ludgy's light OFF
");
// The HTTP response ends with another blank line:
client.println();
// break out of the while loop:
break;
}
else { // if you got a newline, then clear currentLine:
currentLine = "";
}
}
else if (c != '\r') { // if you got anything else but a carriage return character,
currentLine += c; // add it to the end of the currentLine
}
// Check to see if the client request was "GET /H" or "GET /L":
if (currentLine.endsWith("GET /H")) {
digitalWrite(ledPin, HIGH); // GET /H turns the LED on
}
if (currentLine.endsWith("GET /L")) {
digitalWrite(ledPin, LOW); // GET /L turns the LED off
}
}
}
// close the connection:
client.stop();
Serial.println("client disonnected");
}
}
void printWifiStatus() {
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
// print where to go in a browser:
Serial.print("To see this page in action, open a browser to http://");
Serial.println(ip);
}
Post the Serial output here once you're done.
wifi_dnld.elf (178 KB)
wifiHD.elf (707 KB)