A couple of J2ME questions for developers

As a newcomer to developing for mobile devices and the J2ME platform,
 I’ve run into two small problems. I’m probably not alone, so I’d like to ask for advice here.

Source code for the MIDP API

First, I’m missing the source code for the MIDP 1.0 or 2.0 API. Unfortunately, it doesn’t come with the 
 Java 2 Micro Edition Wireless Toolkit, as you might expect. I couldn’t find it on
 the official J2ME siteeither. Having the sources is very useful
 when editing code and essential for features such as code assist and Javadoc integration in an IDE like Eclipse.

Working with graphics

In MIDP 1.0 there doesn’t seem to be a way to work with regions of an image. At least I haven’t found one. This comes up
 in games, for example, when all the graphics are stored in one image and you pull individual pieces from it
 to build the game screen. An overload of
 createImage would do the job, for example Image.createImage(Image,x1,y1,x2,y2).

I haven’t looked into MIDP 2.0 or proprietary extensions from the likes of Nokia, but is there some way
 to do this with the standard MIDP 1.0 API?

I’m asking because NkD and I
 (he’s a colleague and friend, not a distribution company) are making a mobile remake of a famous 
 game from the ZX Spectrum days.