The United States Citizenship and Immigration Service is a HUGE government agency with tens of thousands of current applicants like you. You will not be able to simply email them to ask questions about your papers. You can find information on their webstie at www.uscis.gov. Or you can call their customer service line at 1-800-375-5283. When you file the I-130 you will get a receipt number and will be able to enter that number on the uscis website to find out about the status. If your wife is in the U.S. you may be able to file the I-130 and I-485(adjustment of status) at the same time. You may want to speak with a lawyer to make sure you are doing things correctly.