How to create a blog in Drupal

I hope I can answer your questions.

1. The purpose of Breadcrumbs is to show everything 'behind' the current page. Because your blog is 'under' the "Blogs", "Home » Blogs" will appear as its breadcrumbs. The only thing 'under' the main blog page is "home" and therefore only "Home" will appear in its breadcrumbs. My guess ( I am new to drupal so dont take my word for it) is that you might be able to accomplish this through taxonomy. But again, I am unsure.

2. I believe the only way to get rid of this link is to go into the code and edit the following file /modules/blog/blog.module

Remove or comment out the following bit of code

function blog_link($type, $node = NULL, $teaser = FALSE) {
  $links = array();

  if ($type == 'node' && $node->type == 'blog') {
    if (arg(0) != 'blog' || arg(1) != $node->uid) {
      $links['blog_usernames_blog'] = array(
        'title' => t("@username's blog", array('@username' => $node->name)),
        'href' => "blog/$node->uid",
        'attributes' => array('title' => t("Read @username's latest blog entries.", array('@username' => $node->name)))
      );
    }
  }

  return $links;
}

And you should be good to go.

I hope these answers help.
--matt

Drupal 5 allows you to modify all of the links at the theme level - this will mean that you don't need to hack a core module.

Create a file node-blog.tpl.php in your theme folder (easiest way is to simply copy node.tpl.php). This will automatically target blog nodes.

By default the node file will print an aggregated variable $content - often, as in your case, this is not desirable. You can access individual chunks of content via the $node variable.

One of the variables $node->links will, from memory, be an associative array of all the links that are being rendered in the content. You can then use whatever method you like to unset these items.

You will need to pull in the other variables as well, but this is not that hard. To check what variables are available throw this bit of code into the tpl file:

<?php drupal_set_message('<pre>'.print_r($node, true).'</pre>'; ?>

This will set a message box that shows the structure of the current node object.

I was working on a problem which was, in a way, related.. and in the mean-time I found an answer to your first question. Check out the module Taxonomy Breadcrumbs.. it seems like there might be a light at the end of your tunnel.

Hope this helps,
--matt