OK Yannie I'll post what they mean for you.
(paper): Means it was scanned from a paper copy.
(diff ver): Means it is another copy of the same book that was first posted up.
(c2c): It is a complete book with all the ads, text stories included.
(JVJ):This is a book the was given out to some of the scanners by JVJ from his great collection.
(inc): A book that is missing ads, text stories, maybe even some stories.
(paper+fich): Means a book that is part paper with fiche (microfiche) which is filmed copies of books, comics as well as other material that would not be available other wise if it was not copied, Use mostly in a a library setting.
More on "fiche" at this link:
http://digitalcomicmuseum.com/forum/index.php/topic,3557.0.htmlI would hope this gives you some information on these. Please continue to enjoy the site.
Geo