hi everybody
im sure this is kinda n00by question but i googled a lot and i couldnt figure out it still.
so here is my problem
i want to install debian beta3 which is with xfce desktop.
and i downloaded tar.bz2 archive
then i created an ext2 partition my 4gig sd card.with cfdisk which is installed within install tools "pb"

but how can extract tar.bz2 archive to that partition?
where it is?

please help this linux noob