I am a reference librarian and I have absolutely no clue how to get to the library's ebooks.

When people ask, I just point them to our library's homepage which then takes you to Overdrive (or ListenNJ in my state) and they have instructions there. The librarians themselves have nothing to do with managing ebooks; it is all done by the outside companies (Overdrive).
At my library, none of us librarians even own a Kindle or Nook. The library itself doesn't own one, and not one of the librarians has been trained in it, and there are zero plans to train us. The upper administration all received Ipads but they won't let us librarians touch them to learn about ebooks.
I feel alot of resentment about ebooks; sadly I feel I probably need to buy myself a Kindle just to learn to use it, so I can show the patrons how to use it, so they can get ebooks and never ever return to the library and I will become unemployed. Yeah what a deal.

(Just venting my fears, I don't see the profession surviving the ebook).
So don't be surprised if the library has no clue about ebooks lending. Many feel it's Overdrive's issue.