Thanks a lot for your answer Mclewson!
I did that, downloaded netinst cd and make the instalation, disabling the PCMCIA detection phase (it crashed), but after the installation when it reboots to finish the installation (to select time zone, create the user and download packets), it looks like the screen driver is not correct, because after the text boot, I can only see strange 3-color bars in the screen.
The thing is that I can't switch to any command line to try to install the correct drivers, does anyone know how?
thanks again