Create custom blog category layout in Joomla 1.5

If you need to customize the blog category layout in Joomla 1.5 you do like this: 

1. Create the following subfolders to your template directory: 
   mkdir -p templates/yourtemplate/html/com_content/category
2. Copy blog.php and blog_item.php from Joomla core:
   cp -p components/com_content/view/category/tmpl/blog.php templates/yourtemplate/html/com_content/category
cp -p components/com_content/view/category/tmpl/blog.php templates/yourtemplate/html/com_content/category
3. Customize blog.php and blog_item.php in the components/com_content/view/category/tmpl/blog.php templates/yourtemplate/html/com_content/category folder to your needs. These modified files will override the ones in the Joomla core if they exists.