How to install the updated kernel image?

Hi,

I installed Ubuntu on my Beagle Board xM RevC, and the kernel version
is 3.0.4-x3. In order to modify the kernel source code, I firstly
download below script, which will download the corresponding kernel
source code and 'make' the kernel image, modules and headers.

https://github.com/RobertCNelson/stable-kernel/blob/4246290819e525ac249f38c236c81b1a2e4a0636/build_kernel.sh

And after execute the script on my Beagle Board, I get the zImage of
kernel. Then my question is how to install it to the Beagle Board?
Just run 'make install'?

Thanks!

BR,
Tom