go to AltaVista.com and check out their "babel fish." You can copy and paste the instructions into the babel fish utility and select "Spanish" and it will translate. I think it even lets you open a page and translate it right then in the page view.
If you can't find the Babel Fish option on the AltaVista page, just search for Babel Fish on Google and you'll get plenty of hits. I use it whenever I chat with someone Spanish speaking it's great fun. :)