The default page is the first page in the book. So, that is not possible I am afraid.
The iBooks program on the iPad works differently and has many issues as you can read all around here. Try to open the ePUB in the Coolreader app or another ePUB app and see if it opens.
Creator and maintainer of the e-Book Tools
Word add-in. Also see thread
here on Mobileread.
Creator and maintainer of the Clean HTML macro
for MS Word.