4
ok no problem!
you can simple do that by accesing system admin-preferences-general setiings there you have :
Module for your start page
set an module for your start page and will be showed as start page ...if you don`t want to use any module as start page you can put @ Module for your start page:none
go back in system admin -blocks
and put what blocks you need on the index.php page...
don`t forget to make them visible and after that from system admin -groups select the permission for accesing those blocks...and you`re done!