I am a little new to Java, but have a good resource for assistance. The one thing he keeps asking me to find out is what version of Java Service Pages is currently using. We are on Service Desk 4.5 SP11, I believe. Any assistance in getting started on customizing Service Pages would be greatly appreciated.
The supported java version for SP11 is 1.3. (1.4 is supported for SP18 and newer)
To start customizing service pages, it is best to read the web-api programmers guide and the example web-api applications. Both of these are on the installation CD. Also on the CD and in all service packs is the javadoc documentation of the api.