For the longest time I could not find the WRTKit, although I could find tons of references to it. Finally I chanced on WRTKit folder (lots of useful stuff inside) as a part of the WRT RSS example at http://wiki.forum.nokia.com/index.php/Image:RssLib.zip.
I then cut-n-pasted the WRTKit folder into my first "Hello World" example courtesy of WRT Effort http://efforts.embedded.ufcg.edu.br/wrt/?p=9#comment-101. While the example is not perfectly worded, it got me going. It almost always seems to be a part of the novice's task to discover what is obvious to the author.
The WRT Effort site seems to have a lot of useful samples, check out http://efforts.embedded.ufcg.edu.br/wrt/?cat=1 .