Theme development

i can't install a new theme in drupal 8. i have tried to set the theme in de source folder root/themes/ and sites/all/theme but it didn't work. i have also tried to upload the zip file whitin drupal ->Appearance->install new theme but nothing happens after clicking. can someone help me?

macbook pro 10.9.2
MAMP
Drupal 8-Alpha10
Theme: https://drupal.org/project/basic
https://drupal.org/project/bluemarine

Hello.

I have my node shown on overlay, and see this site logo come together. How can I get rid of this?

Thank you

Hi,
I started customizing a layout on drupal 7 using default theme Bartik. I resized, changed css and I added my own divs etc. The point is that added dives in file \drupal\bartik\template\page.tpl.php are showing also after clicking on admin panel.
I mean Content/Structure/appearance etc.
How can I avoid it?

Hi,
I want to create a contact-page like this: http://www.cinesite.com/contact-us.

I create a html page with this code I found in internet to put google maps in background:

Unable to get form to enter my user name and password, all i see when i type mysite/user is: "Create new account Log in (active tab) Request new password". I'm missing the actual form and the log in button to the bottom of the screen!! hope someone can help!thanks

On the website I am building I need to be able to place things like audio playheads and buttons to links at specific places on top of images. After a bit of research it seemed that using the Panels module would do the trick. However after looking at a few tutorials I am not so sure that this is the way to accomplish my goal. Am I missing something, or is there another way to do this?