I was laid off too........and am now relying on the 180 days rule
I filed for AOS in Dec. 1999 and got laid off in Jan 2001, am now with another company - my job description, title etc. are very similar to what I was doing previously.......and I guess there should be no problem.........I am waiting for my approval still.
EB3, PD - Sept. 1997, ND - Dec. 1999
Good Luck!!