Homebrew PCBs

Hi all,
   
  a few weeks ago, someone had talked about diptrace and I downloaded it to try before purchasing it.  I can't seem to figure out a way to generate prints from it that I can use to expose PCB's with (I use negative resist boards).  If anyone can tell me what I need to do, I'd be most appreciative.  I really enjoy the software, but when I'm doing small prototypes, I don't want to have to spend 500+ dollars to get prototypes made (several boards I play around making are 8x10" which cost a bit much when being made...)
   
  -Tony
   



[Non-text portions of this message have been removed]