How do I make a backup of the work I've done in screen-scraper?
As with any work you do on your computer, it's good to back it up once in a while. The preferred method for doing this in screen-scraper is to export your scraping sessions and scripts as ".sss" files (note that you only need to back up the scripts that aren't referenced in scraping sessions--any scripts called from within scraping sessions will be automatically exported along with the scraping session). Once the files have been exported you might also consider storing them in a versioning system such as CVS or Subversion.
screen-scraper will automatically back up your database periodically to ensure that you don't lose any work. You can also manually invoke this backup process by selecting "Backup Database" from the "File" menu. The database backups are stored in the "resource/db/backup" folder. The directories within that folder contain previous versions of your database. If your database has somehow become corrupted, you may be able to simply revert back to a previous version. Help on that can be found here.