So you are moving from the slate version to the digital version and wondering if it will all go well.
The good news is that you will be able to open the project but given the number of versions in between (probably the record number that I have seen), it's just not possible to say whether or not you will hit problems. You may, you may not.
The most likely area is with lists, if you have any. What will happen is covered on my site and it's not as difficult as it may appear at first. We will help you here if you get stuck on that one.
What I would do is created zipped copies of your projects before you upgrade them. That stops you accidentally opening the backup in the later version. You can download the trial version and I suggest you install that on a different machine while you transition from 2002 to 9. Later versions can co-exist although I would still not put a trial on a production machine.
You can apply Service Release 902 to the trial and I recommend you do.
See www.grainge.org for RoboHelp and Authoring tips
Thanks, I will try that. Unfortunately I really only have one machine to use, so will make some backups and try it out.