When I do a file search on eclipse it includes the .svn directories by default. I tried excluding them from the build path but they still appear on file search
.svn
If you install the subclipse plugin then it automatically excludes the .svn directories (plus provides some other cool stuff in the IDE).
http://subclipse.tigris.org/
If it does not work, simply restart Eclipse (sometimes it's needed on a fresh checkout)