Seriously, shykat, you should take a look at ShubookSE. Its only $1.99 (AU)..dunno where you live, but whatever, its pretty cheap for what it is. Would be nice it it was free, but.. i am pretty impressed. You get your page numbers too
I like to read books in series too, but I prefer to sort by Author, and that way they all stay together in a separate page (in Stanza, Megareader and Shubook).