Oh! I forgot, the mega compatibility has the same issue, with shields that do not get SPI signals from the ICSP header, than the old ethernet shield, you have to bend the pins and connect cables to the SPI pins of the Mega board.
http://mcukits.com/2009/04/06/arduino-ethernet-shield-mega-hack/
This should be indicated in the readme, so the newcomers are warned, as the famous nuelectronics shield has this issue, in fact, all the shields listed in the reosurce file have this issue.
Also, in the resource file there is a link to http://blog.thiseldo.co.uk/?p=344 , but he has already released a newer one v1.6, http://blog.thiseldo.co.uk/?p=504