If Mark sent you the file from IPDB it's only U26 and U27. I believe those are the only ones that need to be replaced. The txt file included reads: "Here are the modification made on that roms.
- Rom Checksum test as been skipped. (If you have a bad rom, the programm won't see it)
- Factory setting is at freeplay.
- Everytime you start a new game, the Solar value is reset to 500 000.
- The setting for the advance solar value is now 10 000 to 990 000 (factory 250 000)
Please note that this roms has not been modified by a professional. Use at your own risk. I'm don't want to be held responsable for any damage that can be caused by this rom."