Yes the screen from boxtec.ch and the ethermega from freetronics didn't fit together well because of the Ethernet port.. I filed / sanded about 2mm of the lcd shield away around the Ethernet ports location and now it fits snug as a bug in a rug!
I will take a photo later tonight and post it for you.to see.
Nope no pin conflicts with the hardware I used... check out my page it links to the exact components I used.
Good luck with your project.