I would now like to publish the articles on my own site but have them appear only on one page and not my main page ... Is this possible?

Pages are static and are for content that rarely changes. They sit outside of the blog structure and you cannot post to multiple pages in any blog. There is only one main page for posts in a blog and all posts will display on the main blog page. There is no way to exclude posts from the main posts (blog) page.
http://en.support.wordpress.com/pages/
http://en.support.wordpress.com/posts/
http://en.support.wordpress.com/post-vs-page/

The front page of the blog by default will display your posts (not pages) in reverse chronological order, with the most recently published post on top. If you do not want all the posts to show on the front page, then you can create a static front page. http://en.support.wordpress.com/pages/front-page/

Although there is only one dynamic page in a blog for posts and we cannot post to more than that one page, we can create the appearance that we have posted to more than one page. We organize posts by assigning categories to them. You can create a custom menu and add the categories into the custom menu.
http://en.support.wordpress.com/menus/
http://en.support.wordpress.com/menus/#adding-category-pages-to-your-menu

Here’s a link to a custom menu walkthrough > http://onecoolsitebloggingtips.com/2011/08/11/wordpress-com-custom-menu-walk-through/
There are many common errors, misunderstanding and misconceptions when creating custom menus and you can read about them here > http://wpbtips.wordpress.com/2011/12/19/custom-menus/

I wrote a few articles for other sites over the past few months. I would now like to publish the articles on my own site but have them appear only on one page and not my main page and also not have them publicised via twitter etc.

Is this possible?
Blog url: http://chalkontheboots.wordpress.com/