Dear SquareOne,
Thanks for your response.
How to check whether employer used my labour for someone else or not? BTW, I have I-140 approval notice with me.
Dear Ag28,
Thanks for your response.
During early 2000, I-485 was not current and i had 3 years H1b left. Moreover I got laid-off so I did not have a chance. Now I got the project myself.