I just uploaded the latest build. You can get it here : http://stuff.intelligent-isi.com/sprinklers_pi/sprinklers_avr-1.0.0.tar.gz
It’s built with either the Visual Micro plugin for Visual Studio, or else the version 2012-05-23 Arduino.mk makefile on a linux platform (what a pain in the ass that thing is..)
When you start it up, it currently binds to IP address 192.168.10.20 and port 8080. You can change that via the web page, or you can edit the code to make it something that works on your network.
There’s a tftp server built in to upload the web pages to the SD card. There’s a little bash shell script called xfer that you can use to ease the upload. OR, simply use your desktop to copy the files in the web directory to a /web folder on the SD card.
I apologize that there’s not a whole lot of step-by-step here. If there’s interest I can go into more depth…