I did the review myself, removed obsolete code and fixed 3 additional issues (2 related to opening detail page and one with obsolete file included in zip archive), and now you can take a look
I know that my code is far from optimized (lack of experience makes me use re all the time :P), but the biggest problem is getting the author variable filled. The store's results page doesn't contain authors of listed ebooks (weird, isn't it?), so probably I will have to open another browser object and take the author from detail page, but that will be a huuuge performance hit. Any ideas?