Most - I think that's about right... you can download a free version of mach3 (limited to 500 lines) and attempt to drive the board. Does it have a power supply? I did some brief poking around on the old create-a-ring website using the wayback machine and found a picture of the Taig setup you have with a price tag of $8000 !!! LOL, my how far hobby CNCing has come... I have a xylotex setup and a full up 4-axis package would run you about $460 with everything you need (link). If you wanted to upgrade the spindle to an ER-16 collet system, you can purchase a new headstock and collet set to handle most 3/8" shank or smaller end mills, drill bits, etc.
Here is the wayback link - it appears that they were actively selling some version of their machine package up until 2006! -Keith