install subversion (
http://subversion.tigris.org/getting.html#windows)
run (in cmd) svnadmin create C:/Documents and Settings/longcomplicatedpath/repository
(yes, you must use / instead of \ for the path)
install subclipse (look in C Programming guide)
open SVN Repository View
Right click in SVN Repository view, New> Location... (or something like that)
enter file:///C:/Documents and Settings/longcomplicatedpath/repository
hit ok (if you get an error, tell me what it says)
with your project, Right click>Team>Add to repository (something like that)
more info at
http://svnbook.red-bean.com/en/1.5/svn-book.pdf and in the WRWB help file