I am currently working in US in L1B visa

I came into USA in Jul-2005 and stayed here for 2 years and 4 months and went back to India in Nov-2007.

I worked in India for 4 months and got my L1B stamping done at that time and came back to USA on Mar-2008.

*I got my I-94 is till : Mar/2011.
*In the Passport i see a PED : 01/23/2011.
*In I-129S there is a date : 3-Jul-2010(same as Visa Expiry date in Passport).
*Excluding my stay in India the 60 months will be ending sometime in Nov-2010.

I understand with L1B i cant stay more than 60 months in US.

My Question is with above situation how long i can stay and work in USA.Please advice. What needs to be done if i have to stay and work beyond my legal stay.