Wow. I cannot believe you would post that in a public forum. You just cannot throw up your hands like that unless you want to put yourself right out of a job. Your professional development is not someone else's responsibility, it's yours. (And I apologize if that's a bit harsh, but you have to get out of this funk you seem to have let yourself slide into.)
I'm a special librarian these days, and my patrons insist on DRM-free PDF, so I have some special circumstances. However, you bet your bippy I know how to use Overdrive's products, and even though I don't manage any contracts with them, I know how the model works. Your library does indeed have "something to do with it" -- someone made your profile choices, and they can be changed to suit your patrons' preferences. The company offers a slew of staff training webinars, and a certain number of them are included with every contract. Ask the person who handles the contract for the access id and get out there and watch them. Download the apps to your desktop computer and check out some books for yourself; the functions work the same on the PC apps as they do on the dedicated ereader devices. Go into stores and play with every e-reader you can get your mitts on. Also, bookmark this for free classes, the ALA TechSource blog:
http://www.alatechsource.org/blog?gclid=CKHvzJbstq0CFXMBQAodOGpPXw
Even if a particular library doesn't have the money to invest in an Overdrive account, there is no excuse for a professional librarian to be ignorant of the technical aspects of e-books and their implications for libraries. There are an enormous number of legal issues surrounding these things that have the potential to completely change the way we do business; we have to stay on top of them so that lawmakers don't allow publishers to destroy the public resource that we have spent the past two centuries working to build.
PS: In our household we use Overdrive titles from public libraries on a Nook Color, an iPod, a Toshiba Thrive tablet, and four PC's. My 4 yo has learned how to download Overdrive titles, so believe me, you can do it, too.