http://www.cnczone.com/forums/showthread.php?t=29825
It looks like you could contact user: mcpltd and he might be able to help with the controller.
I got a Taig mill from Nick last year, and I finally have my stepper drivers (from ebay) hooked up properly and software configured (EMC2). It definitely is a lot of fun to see the mill under computer control. Now I gotta figure out gcode, feedrates, spindle speed, endmills, etc.......
Justin