Question about FMLA

[Tuffy]

I was just reading a link that Bad Boy posted on FMLA, a Gov site. It was under the restoration of Job after FMLA and states that the employer MUST restore the employee to his/her original position or equivalent position, then it goes on to talk about Key employees, which I think they mean saleried employees, I was told there were no lite duty positions, and was never called about a lite duty position, I did receive a letter from my dept manager statting that they could no longer hold my position, This letter was certified and sent 2 or 3 days before my leave was up, Then after being released to return to lite duty 12 weeks and 3 days I received another certified letter from my HR Dept stating I had 30 days to find a position or my employment would be terminated, Now my question is if the employer has to reinstate me to a position acording to the FMLA how can they require me to find my own position? Hope I,am making sense, My employer never tried to find me a position, just stated they had nothing. I,am a nurse and worked for a large health org, Hospital, Clinics, home health care agency, and there were no positions! common now. Would this be in violation of the FMLA policy on my employers part?

Is this a labor issue or WC or both or was I reading and missunderstanding the FMLA rules?