Just to avoid creating another thread, I got my SRAM and 74LS02 and Hat Trick cartridge today. I followed the directions in the document, however, 7800ctrl reacts as if there is no cartridge in the slot when I have my devcart in. Could the problem be that I am using a NTSC Hat Trick game? I double checked all my connections and they seem fine.
Also, I wrote a really simple program to automatically fix bad ROMs by a process of elimination. It work very well.