Are you looking for a method to insert images into the blog posts? You can use the add image button available while you write a post under Upload/Insert. It has a small icon in shape of a rectangle (image). If you need to add an image as header or logo , you need to edit the header.php.
If you want to add picture in your blog posts then first upload your image to images folder through any ftp client or direct through cpanel upload option, then use below given code in your blog post (Use left,right option for alignment). <div style="float:left; padding:0 10px 10px 0;"><img src="http://www.yourdomain.com/images/yourimage.jpg" alt="" width="200" height="150" /></div> Code (markup): DON.