Pro Flex on Spring

I really thought I could get a lot out of this book. I mean, it has everything, the entire kitchen-sink of all of the current Java technologies - Spring, Hibernate, Ant etc. etc. and then Flex on top of it all. Sounds good but in the end it just gives me indigestion. The build files don't work correctly, the illustrations of the project setups are wrong and a lot of the code doesn't compile correctly if you can figure out how to compile it at all. Finally after Chapt. 5 I've put it aside. I feel I'd be better off taking all of this one technology at a time; it's a shame software development has become so convoluted.