No, there is no free edition of CloneDVD2. There is a free 21 day trial of the program however.
One free program that can take the place of CloneDVD is DVDShrink. It is no longer effective as a decryption/ripping program on many newer dvds, but still works well for compression. It will work in Vista.
There are many guides to using it on the net, including some here in our Copy Movie forum and at www.mrbass.org
If you run into a dvd that DVDShrink cannot handle on its own, you can use DVDFab HD Decrypter to decrypt and rip the movie. It is free to use and will continue to function even after the trial for the main section of DVDFab expires. http://www.dvdfab.com/free.htm Use DVDFab HD Decrypter to rip to the hard drive as files, then open the files with DVDShrink to compress them.