the USCIS ask if i change my address i have to let them know within 10 days but me and my wife (sponsor) has been in our new home for 1 month now,now we are going to send address change ,what will happen?thanks a lot.

Hi!
I don't know what will happen,but i guess it should be fine theoretically and you must file the AR-11-Change of adress and I-865 -Spnsors change of adress forms as soon as possible.You should also call INS on 1-800 number and notify them about the Change of adress on the phone too.
Best wishes

whats the INS phone number? i live in FL,thx

The number you want is 1-800-375-5283

ETA: Have your SSN and A# handy as you will be asked for them.

I think the advice above about calling is misleading, I think that what you're asking about is NOT an address change, but rather the AR-11 form, which can be downloaded from the website or can be filed online. The AR-11 form must be filed by the immigrant every time he/she moves. (It replaces the old requirement that the immigrant go to the Post Office to register their address once a year.)

The sponsor (probably the USC spouse) is also required to file a Form I-865 which is also downloaded from the USCIS site every time he/she moves.

You only need to do an "address change" (which is different from the form AR-11) if you currently have an application pending with USCIS. If you do have an application pending, you can do that by phone or online at the website. Personally I prefer the website since you have instant written confirmation of it.