Re: how can i install debian into old machines
Unfortunately, the latest Debian GNU/Linux 5.0 requires at least 44 MB RAM
Maybe you could try Debian 4.0 Etch or Etch and half (the oldstable now),
and with a base
system install first (around 24 MB ram) install only lightweight GUI
like XFCE or FVWM, for example.
If all fails, try Damn Small Linux , a Debian derived distro focused at
old and low spec hardware.
You could receive better guidance at the list Debian User Portuguese .
Despite its name, the list is for Portuguese and Brazilian Portuguese
There, you will meet thousands of brazilian and portuguese Debian users,
and it is likely to get many and better answers than mine.
Maybe, someone accomplished this same task already.
This list, debian-project, is for discussions about Debian organization.
At the support page  you will find various ways of getting help.
There are some other info sources at   .
Andre Felipe Machado
A Debian user never dies. Issues a last command:
#shutdown -h now