hmm i was certain i replied to your post...strange.

anyways:
1.Thanks for the interest!
2. I guess 1-17 need to be present; i cannot provide them for you, as they are vanilla files and the org. rules ban distributing what is essentially copyrighted CA files. If they are in your own mod, try renaming the files 1-10 etc. I do not think the game needs 17,(original amount) per se. Just the numbering sequence probably.
3. I have unpacked everything myself; i have had no problems though; i backup any files i am about to change, and keep a log of changes, to a new folder.
4.