Customizing comps.xml and stage2.img

[Lercio Teotonio Gontijo]

I need help about constructing comps.xml and stage2.img for Fedora.

We build a new distro called Libertas (http://libertas.pbh.gov.br) based 
on Fedora Core and we want to change files above.

Thanks in advance


Regards Teotonio.