Drupal 7.x

I am using Drupal 7 and would like to restrict viewing access to certain pages based on content type. I have created a new Content Type (still a node) but cannot see how to segregate it from general content. I have installed Access Control (beta version) and Node Access modules, but neither seems to do what I am looking for. Any suggestions?

Fatal error: Call to undefined function date_views_handler_is_date() in C:\xampp\htdocs\Drup\sites\all\modules\calendar\calendar.module on line 595

how to fix this module.. pliss help...

My website is www.touchscreentextbooks.com

I want it to have tabs on the menu so that people can view my content on different pages, like a tab for News, where all the news is listed, a tab for tips, buying advice, and a few others. I am new to drupal and have been working with hardcoding html before this instead of a cms. I heard a lot about drupal and decided to give it a shot, but Im having a hard time getting started. Please help!!!

What is the best way to do this?

1)
If I set-up multi-user 'blogs' in D7 (ie. a separate content type for each blogger), can each user moderate comments made to only his own nodes? Or is comment moderation still accessed by that one stupid page in the admin backend like D6? Likewise, is forum-post moderation improved?

I don't understand why, in order to moderate comments on their nodes, authors have to access the communal 'comment admin page' in the backend and can therefore erroneously or purposely delete comments from other peoples' nodes. I stopped using D6 because of this issue.

Hi all!
I don't know what have i done, but the box to add tags when editing or adding new content is gone. I'm completely lost on what I could have done, I have checked all the admin pages and found no way to enable/disable dis box. If anybody could give me a hint or a clue I would really appreciate.

The taxonomy module is enabled

I have installed several modules and themes, but this is happening in every theme. These are the modules I have installed and activated:

I am planning on converting my current website (collegebodybuilding.com) to drupal in the near future. The website is currently designed with straight html/css in dreamweaver. Next I was planning to forward all traffic (search engines, etc) from the html site to the new drupal site. I also considered changing the domain name to something more specific but don't know the consequences or what not from doing this.