1- This question can be answered only by MemTronic
2- There is no way at this time, I am sorry; I will try to implement one for the next relelase
3- Yes, you can : In the actor's main window, under the list , select "Status" -> Never web imported. now open the import window for actors and it will show only actor's never imported.
4- I must modify the Script for that, and I must check if all will work.
5- The only way is to manually copy all the covers of a movie from the "covers" folder into the folder where you create the HTML-DB.