You should have been prompted to migrate the files from the prior version. Sounds like this didn’t happen or perhaps ‘No don’t migrate’ might have been selected.
If 2.0 is still installed, start it up and go to the About box. It will have a link to the ApplicationData directory. Click on this. These are all of the files you are looking for. Copy all of these files to the same link in 2.5.
The application dir is usually in this path
C:\Documents and Settings%Your name%\Local Settings\Application Data\Quest Software\Toad for Data Analysts 2.5
One word of caution: Don’t copy over the files with TDA 2.5 running as it will overwrite these files when shutting down. Copy them over when it isn’t running and then start up.
Here’s another thing to watch: The project manager has full paths to the linked files. If any of these files are in the old directory and then you uninstall, you will lose the links. The two files that handle the project manager are …module\settings\ ProjectManager.tpf and …modulesettings\ ProjectManager.xml
If you have any issue with the project manager files just open those two files up and edit the paths.