Brenda,   I’m pretty new here and also new with my HTC Inspire, but I might be able to help you with this.   From the Home Screen, tap on “Menu”   Select “Settings”   The second entry from the top is entitled ” Wireless & Networks”.  Tap that.   Select “Wi-Fi settings”   That will show you all of the wi-fi connections available within reach in your area, and you should be able to recognize your wi-fi by its name.  I am assumming that you have service from Comcast, and your own home wi-fi router.   When you see your wi-fi name, tap that.  You will be given an opportunity to connect.   You will be asked for your WEP key and you must be sure to select the correct channel (  1 through 4 )  If in doubt, look at your wi-fi router and see what channel is being used.   When properly connected to your wi-fi, you will see a symbol with a dot , half surrounded by parts of a circle. ( reminds me of what it must look like if you’d look directly down from on high on an amphitheater )  This will appear at the top middle ( slightly right of middle ) of your home screen every time you are connected to your wi-fi system.  At that point you will not be using your data from your phone provider.   I hope this helps.  If not, I’m sure that some more qualified individual on the forum will jump in.   Good luck.  You’ve purchased a great phone. IMO   Hanagan Wheaton, IL.