College: Library

I went down to the library today. Since the textbook that I need is still being sent to me, I figured I could borrow one from the library. The catalog said that one was available, one was checked out, and three were on course reserve. Since you can only use course reserve inside the library and only for 2 hours, this is pretty much useless to me. But when I went to the appropriate stack, I could not find it. I could not even find the ones on course reserve. The only book I could find was a fourth edition from 1999. The one I needed though was the sixth edition from 2006. Going to the front desk for help wasn't much help: the people at the front desk were not able to help because they thought that they had taken all five copies of the book off course reserve and that the books should all be on their proper shelf. Of course I told them that wasn't the case. They're now either gonna say forget it and declare them lost or actually go to the trouble of tracking them down. Unfortunately for them, my own textbook would come by then and I would have no need for theirs.