[Mediawiki-l] newbie questions

[Manny Gujral]

Hi all,
i am a newbie , having a few questions
1. Installed wiki media at
http://www.allaboutsikhs.com/ensikh/index.php/Main_Page  no problems
i need the page template to look as this page
http://www.allaboutsikhs.com/ensikh/test/
what and where do i need to change

2. i need to have a add on domain pointing at this directory, but it doesnt
work, i need to change .htaccess file and how and what needs to be changed

3. i want non logged in users to see main page/user login, registration and
help page and logged in users to see all content.
I donot want ANY ONE to edit content except admin/sysop.....can this be
acheived

thats about it for now,
thanks in advance for all the help
with kind regards
Manny