Using PortableAppsBackup and -Restore without the PortableAppsSuite

Hejhej!

I have FF3 and TB2 Portable allready installed on my PC an would like to use the Backup function of PortableAppsSuite.

What I tried is this:
- copied the PortableAppsBackup-folder somewhere else
- launched PortableAppsBackup seperately from the Suite from the new folder
- started a "Complete" backup

I guess that's not what I wanted

Of course there are other backup programs, but this is the only one I found, which I can run, it knows the location of my PortableApps(-Profiles) and backs it up to a 7zip-file.
But this only works for the PortableAppsSuite-folder, right? Can it be modified, so I can state the path of my already installed Apps?

Best regards

Cathryne

PS: Does someone know an opensource equivalent of Syncback? That would solve my problem much more easyly