found it!
components>com_comprofiler>plugin> templates>default>default.php.
[code:1]// WARNING: THIS IS EXPERIMENTAL, INTRODUCED IN CB 1.2 AND THIS PART WILL EVOLVE IN FUTURE CB RELEASES.
/**
* VIEW: User profile view class
*
! head !
!
!
! ! ! !
! left ! middle ! right !
! ! ! !
!
!
! !
! tabmain !
! !
!
!
! underall !
! ! ! !
! L1C1 ! L1C2 ! L1C3 ! L1C1...C9
! ! ! !
!
!
! ! ! !
! L2C1 ! L2C4 ! L2C8 ! ...
! ! ! !
!
!
! !
! L4C7 !
! !
!
!
! ! !
! L8C3 ! L8C4 ! ...L9C9
! ! !
!
!
! + not_on_profile_1..9
*/
[/code:1]