Hi, If you can't install 64-bit, simply install 32-bit. Basically, it means you have access to a smaller amount of RAM, even if you're using a computer with.
For example http://jeffhoogland.blogspot.ca/2010/08/32-bit-vs-64-bit-linux-which-to-choose.html Honestly, getting Linux on your computers is going to be the easy part... Marco
