PageFlip v2

I'm new to flash - did it years ago but abandonded it and I'm not getting back into it.

I'm working with the PageFlip book. (http://www.iparigrafika.hu/pageflip/)

I'm trying to follow the example but I got to the highlighted part and I don't understand:

If you want a new page, DUPLICATE on of the templates (depending on what side your page will be).
Edit the content of the layer "content".
Export your new page (Library/linkage), and don't forget to uncheck "Export in first frame",
then copy an instance to the exported items! (Main timeline/Layer: exported/ frame 4)
The last step, is to change the page data (layer actions/frame5/from line26).

Can anyone explain that to me? Thanks!

BTW, I vaguely remember this site from Nov. 2000 so I'm one of the oldest members here!