Download Language.resx (Contains all the strings that can be localized.)

Download and install Global Resource Editor (Allows you to edit the .resx file.)

Open 'Global Resource Editor' and click on Language → New Language. Menu and from the list choose your language.

You can now add localized strings to the new column.

Save the file by clicking File → Save Resource Set As.... When prompted to enter a file name use Language.resx. Separate .resx files for all your languages will be created. Spanish localization, for example, will be in Language.es.resx

If you have Visual Studio 2005 Check out source from sourceforge SVN and you can compile the .resx file into a DLL and test it out.

If you don't have Visual Studio see http://www.codeproject.com/dotnet/Localization.asp. You may need to install .NET framework SDK before following the instructions there.

When you are done, E-mail the completed .resx to <spikiermonkey@users.sourceforge.net> Be sure to include the name and email address (if at all) you want to be shown in the credits.