QTR-Quadtone RIP

I am doing some research on this product before I buy it and have a few 
questions. 1)It appears that QTR will not work with a firewire 
connection, is that correct? 2)Do you have to replace the current K# 
inkset to use QTR? 3. Will you still be able to print color? and can 
you print on any other media except mat finish.
Thanks for your replies