Hola Carlos! Saludos desde Argentina.
You can download the iso from here: http://ftp-osl.osuosl.org/pub/vectorlinux/veclinux-5.8/iso-release/VL-5.8-std-Gold.iso
This is a very good place to start with Linux, post any questions here if you need a hand with the install and setup.
With 2.5G, do you mean HD free space? You will need a little more than that for a standard install. I think you can do it selecting your packages carefuly.
We hope you enjoy VectorLinux.
BTW, my wife is from Valdivia, that would be southern Chile, for our friends around the world.