You should have exported the site definitions first. However, if you have all your old files and folders backed up, you might be able to find the Site Prefs file. There are instructions in the Dreamweaver FAQ item titled Backing up and restoring site definitions.
Dreamweaver 8 was made by Macromedia, so the location of the file will be under Macromedia, not Adobe. Also, the version number is 8, not 10.
Sorry to re-open this thread, but . . .
I had to [again] reinstall my Mac OS (10.4.11) and all apps/files/prefs.
Having reinstalled all, I opened DW 8. The Files tab of the Files window shows only computer and network folders. I want to identify the directory that houses all my current DW site files so I can copy/paste them from my external HD to my PowerMac G4.
I believe I did what David suggested in mid July (copying/pasting Home Library > Application Support > Macromedia > Common > 8 > Sites > Site Prefs, as well as copying/pasting Home Library > Application Support > Macromedia > Dreamweaver 8 > Configuration [which has in its SiteCache folder an ".xml" and a ".dws" file for each of my sites]).
Unfortunately, after copying/pasting these two collections, the site files still do not appear in the Files window.
What must I do to get DW to recognize my site files so I don't have to recreate every one of them?
Thanks very much.