It's easy to download the software from www.ibm.software.com . And there are lots of good books at www.redbooks.ibm.com search the key word 'EJB' 'VisualAge', etc
tailei:
Entry Edition is crap. It only allows you to open 70 classes. So if you loaded JDK, that's pretty much it. It's ok for writing HelloWorld, nothing else.