nothing shows up browsing a repository

Hello,
  I'm new to subclipse and subversion so please pardon my newbieness. I
got the server running with apache2 and authentication and I can log in
and browse the repository with http://localhost/svn/sim/trunk/ but I'm
not sure about creating a repository location in eclipse. What is the
root url? If I put in the url and http://localhost/svn as the root url
(tried it with /sim too) it adds the location but then if I try to
expand it nothing shows up. Thanks for your help in advance. :)

-- 
Dan Adams
CS MS WPI '05