But i still don't know how to post on others blogpage...I want to post a new topic or new thread but cannot find the buttons on others blog. Can any kind soul teach me.
Posting on another's blog is not a right, it's a privilege. You aren't automatically allowed to do so by being a WordPress.com member. You have to ask permission or be invited to contribute to another's blog. If a blog adminstrator decides to allow you to contribute to their blog, they must offer you one of the higher-ranking user roles, from "contributor" on up to "administrator" before you can do so. Have I got that right, raincoaster?
An adminstrator may also allow selected guests to contribute articles for posting without awarding one of the above user roles, all of which allow access to the site, through other avenues, such as via email, as timethief has done.
Many times i can't even find the comments or replies section.
Comments might be shut off for various reasons. Also, a blog administrator can decide who is allowed to comment. The WordPress support page titled "Who Can Comment" says,
You can allow only registered WordPress.com users to comment, or you can allow anyone to comment. If you allow anyone to comment, you can choose whether the name and email fields are required or not. [read more]
Please don't hesitate to ask, rickfok, if you have additional questions.