Yes, I have successfully done just what you describe.

1. Recover the file named "resumeinfo.txt" from the Xolox preogram folder. Copy the entire contents of this file (use Notepad if you want)
2. Paste the copied text into the "resumeinfo.txt" file of your new XoloX instllation, either at the start or end of the file.
3. In the combied file, replace the path information for the old folder where the incompletes were stored, with path to the new folder where incompletes are stored (it's a setting in XoloX), wherever it appears. Save the combined and updated file.
4. Make sure you put the incompletes themselves into the folder where the new XlX is set to store incompletes (same setting).
5. That's it. you're ready to recover wherever you left off.