iBooks Keeps Crashing iPhone

Hello,
Im a student studying under the IGCSE Curriculum and I have an English Literature examinations (internal, not external) on Monday morning. Therefore, I have to finish reading my book by tomorrow (Sunday). However, whenever I open and read 5 pages of my book (Death Of A Salesman, by the way) the application crashes. And it doesnt even return me back to my page when I relaunch!
Ive tried quitting every application running in the background and restarting my iPhone, and also im reinstalling the application now. I wouldve liked to install it before posting this, but the internet in this country is <20KB/s at best and I really need help as soon as possible so ill just have to update in a half hour or so.
Any help would be much appreciated!
Thanks,
Killa K
Apple MacBook Pro 17" / Intel Core i7 2.67 GHz / 8GB RAM / 500GB HDD @ 7200RPM Mac OS X (10.6.5) Apple iPhone 4 32GB Factory Unlocked (iOS 4.2)