MadTown/Opjose:
Well, I certainly hope it's not perceived as me 'butting-in' here, but.....
Frankly I see more than one possibilities are still open here.
Since you've got a New LiPo Batt now (and we'll assume it's in a charged-condition), we'll take this one out of the equation.
This leaves 'Motors' and 'ESC' remaining,,,,, and who knows, maybe even receiver...
(yeap, it has to decode the pulses and instruct the ESC to run)(granted,,, it's not AS likely as other 'possible faults', but it COULD happen).

MadTown:
Is there anyway you can swap motors from side-to-side temporarily, and let everyone know the results. (does the exact set of problems follow or stay?).

I'm thinking if we can determine if most likely it is/isn't the ESC; and if we can determine the condition of the motors,,,, this will go a long way toward resolution.

My 2-cents<br type="_moz" />