Thats ok reza
For those wondering what we're on about, see my demo page
http://www.jphuk.co.uk/zc138a_t1/ind...&products_id=5

When an author has data, and when a book is displayed, there's an optional sidebox showing the author(s)... the author's site url is not separate, its a hyperlink attached to the authors name and nickname in the sidebox..

You're quite welcome to write up a user manual reza..

Regarding the 'spare' fields... thats what they are...spare.. if the textual 'defines' labels for those fields are changed to your choice e.g 'paper quality' then you can put in your own book data entries.. in other words, you choose what you use them for.

Some fields are set up as preset dropdowns, so you can run a preselected set of options in admin to choose from. Other spare fields are just text-input fields. These fields were added in when I did the coding, because to add just one field from scratch is a lot of work, (in various php files) but doing say 10 extra is just adding extra process to the job already being done.

Many of these extra fields can be made 'private' so they only show on the admin pages for books. This was vaguely an attempt to make a flexible product type so that a user can tailor the data to their own needs. A programmer can also change the book type to their own choice, you don't have to always use it for books.

See down the page at
http://www.jphuk.co.uk/zc/index.php?...roducts_id=490 it tells you about the fields

The 'defines' for the text displayed 'label' on the book product for a field, (and for the field label in admin) are kept in specific php files. You need to go through the uploaded book files to find them.

There are in fact a few word docs and other 'readme' type files if you go through the zip file folders. But what there isn't, is a global 'users doc', mainly because its a job making one. And then they'll change zencart version so it all has to be re-written..