error opening earlier Captivate files

Hi. A work associate and I are trying to access the same Captivate files, but using two different versions of the application. I created the files using v9.0.0.223; she modified them using v10.0.0.192. I now want to make changes using my version.

I get the following error:

Any clues? Do I need to update to v10 to access the files? Can I have her save to an earlier version of Captivate?

Please advise.

- Michael Fekete