how 245(k) will apply here?
Timeline:
I entered USA on 1997 on f-1 visa
(3 to 4 semesters of unauthorized work)
completed by bachelors on Dec2003,
(some unauthorized employment)
joined masters on 2004
exit us on 1/2005
entry to us 3/2005 in F-1
changed H-1B on 12/2006
labor filed 7/2007 approved 10/2008
exited us 10/2007
last entry to us 12/2007 on (new H-1 stamping)
140 filing 2/2008 approved 7/2008
I485 filing (employment based) (going to be filed).
How 245(k) will apply here, does 245(k) forgive any past unauthorized work/past unlawful presence INA 245(c)(2)(7) and (8) . I have read 245(k) will render bar to 245(c)(2)(7) and (8) if alien has not maintained his status for less that 180 days from last entry. How this would be intepreted in my case.

Thanks