Mandriva 2006.0 need kernel 2.6.13
 

I have installed Linux Mandriva 2006 but need to upgrade to the 2.6.13 kernel.
Currently I have not re-compiled the kernel but will need to build the 2.6.13 kernel.
Is there a way to get the current kernel config options from one place so I can be sure to enable the correct ones in the new 2.6.13 kernel config?
I have read the Kernel HOWTO but ne mention of enabling the current config options.
Is there a hidden file with the current config's options of the running 2.6.12 kernel somewhere? If so can you name it for me please?

Thanks

/boot/config-2.6.12mdk or something like that

Many thanks.