When you write a Blog the 'Add to Kwidget' box is already ticked for you and (if you choose to leave it ticked) the blog is automatically added to your kwidget.  If you have already written a blog which you originally chose not to add to your kwidget and now wish to do so please follow the following... 

Go to your 'Engine Room' on your 'Home' page and select Blogs & Bulletins > Manage Blogs > Manage Blogs.  Look for the Blog you wish to add to your Kwidget  and then click on the 'Add To Kwidget' link next to the chosen Blog. 

The Blog is now added to your Kwidget. 

NOTE: You may also Remove a Blog from your Kwidget on this page by clicking the link 'Remove from Kwidget' next to the Blog you wish to remove.