|RE: [eclipse.org-committers] Installing SVN|
It sounds like you want to go to Subversive Bugzilla here:
Though it sounds that unzipping right into your Eclipse is a clear no-no.
Either unzip into dropins/ or install using P2. You might want to start with
a fresh Eclipse install since you probably killed its configuration database.
I've personally installed Subversive a few times with various methods,
all of which I found reasonably documented:
Martin Oberhuber, Senior Member of Technical Staff, Wind River
Target Management Project Lead, DSDP PMC Member