I've got a wordpress blog.I wish to add Facebook like Button &Facebook Share button &lifier Retweet Buttons with My Post's Right Side.My Sample Blog Link Here Click Here (Output). How you can Modify such as this?Now I believe it's obvious.as i installed wordpress plugin my theme continues to be modified.i can not re-set that.help me..

Seems like you just need a Social Networking wordpress plugin. You will find 100s available.

Example: http://wordpress.org/extend/plugins/social-media-widget/