Received my TL866, never used an EPROM programmer until yesterday. But, it was very easy. Erased the EPROM with the eraser. Identified the ERPOM, verified the EPROM reported "FF"'s for all addresses, took the TIP-dsr file and loaded it up in the MiniPro software and wrote the code to the EPROM.
Haven't popped it into the TIPI yet, I'll wait for a bigger upgrade. But, wanted to make sure I knew how to do it so I'm ready to go when it's time. I'm sure I'll be able to use it for my classic arcade games at some point.
Thanks to this thread, I'm good to go. I appreciate it!