help with euler

I find it really difficult to understand how one is meant to work  
with Euler [1], even with all the examples online. Has anyone perhaps  
written some more human readable documentation on how it is meant to  
work?

How would I get the equivalent of the functionality in cwm I  
described in "temporal relations" [2]

I'd like to blog about Euler, but for the moment it is not easy for a  
novice to understand the tool, when it makes sense to use it, or how  
to use it.

Henry


[1] http://www.agfa.com/w3c/euler/
[2] http://www.w3.org/mid/ 
2D5F76F7-5D1F-4C23-9DD5-41C802906CC5@bblfish.net