[Drisanna]

Renork,

Check and make sure that you configured your plug-ins correctly. Several of them need additional information to properly unlock the book so it can be converted. I expect that your problem is along those lines, since you didn't mention in your post that you had configured the plugins after installing them.

Drisanna

P.S. You also need to make sure that the computer you're using to convert the files is authorized to read them in the first place. Many books can only be read on the computer that's been properly "registered" so that the DRM information matches correctly.