Main.200 and Navigator.200 Error

I have a windows xp professional 2002, on which I am trying to install ebase 2.20. I am using FileMaker 8.5 Pro but as I am trying to open ebase it gives me an error screen that the program must convert the ebase to and oldebase because of my updated version of Filemaker. It then tells me that the files Main.200 and Navigator.200 cannot be found. When I cancel out of these error screens, the entire program shutsdown.
Thoughts?

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FileMaker 5 or 6 required

When FileMaker created FM 7 it was a major shift in coding that left already created complex databases unable to upgrade easily. Due to ebase being a volunteer driven operation and a decision to make ebase rock solid before porting to the latest version, there is no ebase version compatible with FM 7 or greater at this time.

You can use the runtime version of ebase without FileMaker, or, to take advantage of customization potential, you can look for a copy on the web (eBay, etc.) or try your local community to see if someone who's changed database software might sell or give you their copy.

Beth Hynes