These errors can be fixed by using a simple text editor - wordpad, not word - to make changes to the .opf file after you unzup the epub file. InDesign always leaves little crumbs that need fixing. See Liz Castro's book - EPUB Straight to the Point - which you can find at her
blog. Two other points: I'm not sure the Times font family is licensed for redistribution in the clear, and it is not really a good font for reading anything but newspapers. I'd recommend checking out Droid or Liberation font families, which were designed for computers displays and are licensed under the Open Font License. Of course, others will insist that you shouldn't be embedding a body font anyway. Anyway, go get the book and read it; it'll solve most of your problems with ebooks.