eyesfit007, you can use informers for this. Create an informer with your latest posts and then use the following URL:
where yoursite.ucoz.com is the URL address of your side and 1 is the ID of the informer.
Please note that your custom CSS styles (i.e. from the website's stylesheet template) will not work on your users' websites. If you want to have custom styling, I recommend that you use the style attribute instead.
Fun fact: this is how $MYINF_n$ codes work too!