Hello guys, i need your enlightment because i am stucked many days..

Ive got a notebook with Nvidia GT520M and Optimus Technology..
I have installed BT5 Gnome edition and as known the default resolution is 1024x768 and i cant change it by configuring the file xorg.conf or by adding a new mode with XRANDR.

Furthermore, i cannot install nvidia drivers by nvidia's official site because its Optimus technology and i think it firstly needs intel's VGA drivers.
I tried a lot of packages-drivers i found at repositories with no luck... Is there any drivers for Intel's VGA ??

Or could someone tell me how to configure the xorg.conf file, because i did google a lot and try many things with no luck.
Also i tried a little this tutorials here but i cant even find Nvidia-kernel-dkms at repositories and if i donwload it mannually i get errors...

Please i would really appreciate if someone tries to help me out.
Thanks in advance, a desperate Backtrack fan :P