Legal advice needed please

I was brought to this country when i was only 4 years old by my parents. When i reached the age of 17 i was able to find a job. The owner told me to put any random number as a ss. Now i am married to my bf of 9 years and I want to apply for a green card but i am have a difficult time with the application. The biographic form is asking the information of my last employer of 5 years. I dont want to get my boss or old coworkers in any trouble. I know i can not lie in this form so I am stuck. Right now a lawyers fee is too much for my husband and I. If any of you have any advices, tips, or personal stories about this situation please share. I really don't want to get anyone into any trouble with immigration.

I talked to an attorney about this and they told me that I couldn't lie.. that I would have to disclose previous employers and not withhold information. In any case, maybe someone here has a different opinion. You can also try one of the other forums like http://www.avvo.com/free-legal-advice where lawyers can answer your basic questions. Good luck!