Post installation

Hi,

I've got a problem with missing themes and could use some help!

My test site (4.5.8, via apt-get on Ubuntu) has been up and working fine for a week or so, but on
logging in yesterday I saw three error messages. I had a dig around and discovered that conf.php
had mysteriously disappeared! (No signs in the logs that anyone had used sudo to delete it).

I've lost the ability to vote on a node. There used to be at the bottom of the content a pulldown. Now all I have is "Rate It" but that link just returns to the node I am on.

Hi,
I have updated my Drupal from 4.5 to 4.7.2
Now I also need to update the image module.
I have executed "update-image.php" script but it has a problem:
I must set the "default image path", a subdirectory in "files" directory.
So I move my old image dir (/gallerie) from "immagini" directory in "files" directory.
The actual situation is: /files/gallerie with permissions set on 775.
When I choose the "Default image path" as "/gallerie" or "gallerie", I obtain this problem:

"the directory doesn't exist"

Why???

i have 4.7.2 running and tried the latest video module but got the following error message

Fatal error: Call to undefined function: image_prepare() in /home/.gino/radiofranky/babymusica.com/modules/video/plugins/video_image/video_image.module on line 70

the css is not show in my post(page)

I'm trying to create a page that has nothing but teasers. Is there a way to do this?

Thanks