You don't need to be able to type in Hebrew to help, just do the translation and someone else will come in to fix it up after you.
The Shulchan Aruch has never been translated into English in its entirety, though parts of it have (especially Orach Chaim). None of the partial translation are free to use (i.e. free content or in the public domain).We all learn some SA at some point, just come in and add it to the website. Some simanim in the The Hebrew Project have the Mishna Berura too.
The Hebrew text is online here. The goal of this Wikisource text project is to copy that Hebrew text here (it is in the public domain), and add English translations, section by section, as people look up and learn the various simanim.
Thanks for your help with this project!