tar.gz installation

[Pablo Bernasconi <bernasconi pablo gmail com>]

Hi everyone, 

I ve just subscribed to the list. I have little experience in doing kickstart files and I have a problem to solve.

I need to install a blabla.tar.gz by the kickstart file. Anyone could help me??? 
How do I move the tar.gz file to the system so then in the %post section (I supouse) do:

tar -xvzf blabla.tar.gz
./configure
make
make install

Thank you very much!!!