Change of jurisdiction of Employers' Office

[devaa]

I look upon seniors and experts of this forum to guide me.

Question:
How does change of my payroll run from one state to another state under the same service centre affect my GC processing?

Description: i am a contractor moving from state to state based on projects. My empoyers' office is in state of Alabama (State - A). my payroll is run from Alabama during 2000 and 2001.

My employer opened another branch office (with same federal id) in Florida in 2002. My payroll was run from Florida (State - B) for 2002 and 2003. Now my empoyer is planning to run my payroll back from Alabama (State - A).

As per my employer, my payroll can not be run from the same state more than two year.

FACT: all along my permanent address with INS has been Florida.

i greatly appreciate your experiences and thoughts:
1. Does this affect my GC processing. I am a bit worried.
2. Does INS and IRS has any info exchange about GC processing and tax returns filing status?

thanks and regards

I-140 RD June 2001 TSC
I-485 RD April 2002 TSC
FP April 2003 (Seattle)
2nd EAD valid till 06/2004