Question about blogging

Hi all,

I created a new blog.

I use classic template and I want to know how can I add categories. I mean I want to add a section with labels in side bar.

The blog is hosted on my host not on blogger.

The code I use for "Archives" section:

  <MainOrArchivePage>
  <h2 class="sidebar-title"><$I18NArchives$></h2>
  
  <ul class="archive-list">
   	  <BloggerArchives>
    	<li><a href="<$BlogArchiveURL$>"><$BlogArchiveName$></a></li>
	  </BloggerArchives>
      <ArchivePage><li><a href="<$BlogURL$>"><$I18NCurrentPosts$></a></li></ArchivePage>
  </ul>
  </MainOrArchivePage>

Code (markup):

The code I use for "Previous" section:

  <h2 class="sidebar-title"><$I18NPrevious$></h2>
  
  <ul id="recently">
    <BloggerPreviousItems>
        <li><a href="<$BlogItemPermalinkURL$>"><$BlogPreviousItemTitle$></a></li>
     </BloggerPreviousItems>
  </ul>

Code (markup):

I believe it is possible to add another section called "Category" with labels. I want to know what combination of code I need to use.

And also, How to show Adsense ads on first 3 posts only.

Please help.

 

I couldn't access your blog...

 

It works fine for me. can you guys try now?