i'm a new user to wordpress. can anyone tell me things tht i need to know when i use a wordpress blog? and is there possible for me to use other themes for free besides the ones provided by wordpress?
download wp cms from www.wordpress.org and Install at ur server. Yes u can use any free theme which u like or paid one. You can also use plugins of ur choice.
Just explore anything in there and watch out for updates, wordpress is user friendly so you'll learn by exploring wordpress. Of course you can use other themes aside from the themes from wp.
WordPress is huge, there are so many things you should and can know about it. Best is probably to just buy domain name and hosting, install Wordpress and start using / experimenting. There is a huge amount of resources online with help, tutorials and tips on WordPress and making your own blog. About themes, you can use any you want, doesn't have to be the one from WordPress. Check for example http://www.smashingmagazine.com/2008/08/25/30-free-high-quality-wordpress-themes/ and http://www.noupe.com/wordpress/15-high-quality-premium-like-free-wordpress-themes.html for some good free themes.
Choose a host that has fantastico. Allows for one click installation. Useful if you are going to have many blogs in the future, because manually updating them can become a pain. Themes are to uploaded to your wp-content/themes directory. Themes can be downloaded from anywhere on the net, and can be paid as well as free.
you can choose your free wordpress theme by searching theme sites such as wordpress.org/extend/themes/ or wpthemes4free.com You can also find some good books or dvds to learn using wordpress. Activating a new theme is very simple, upload the theme folder to wp-content/themes Login to admin, go to appearance and activate the theme.