for updated source copy click here.
Now for the installation...
Prerequisites:
1. Install the ff:
- Python2.6-dev
- liblcms
- libxcursor-dev
- tcl 8.5 & dev
- tk 8.5 & dev
- sk1libs
- sk1sdk
3. Install sK1
Either directly compile and install them or build a .deb file. See the README on the commands on how to compile.