I am new to wordpress blogs. So, I have some basic level question. 1. Can I transfer abc.wordpress.com to abc.com?? 2. How to add banner in sidebar or footer or header? 3. what are the best way to edit theme??
Yes, you definitely can -- go to http://technosailor.com/wordpress-faq-how-do-i-move-my-blog-to-a-new-host/ for advice on moving to self-hosted. Mess with the Header.php, the sidebar.php/sidebar widgets (I highly recommend you use a sidebar widget installed into your blog theme) and as for the footer, you can add it to the footer.php file OR the index.php file at the bottom of the page -- you'll need to learn a bit of php (it only takes a day or two) Edit the theme through FTP if you have a good FTP program, if not, then edit your theme through Theme editor section of your admin area.