CSS thumbnail_class

HI! I’m a newbie

Please, Can you help me with this css ?

Now I’ve got this – http://acnereview.ru/obychnye-umyvalki

How can I make like this – http://usagain-minneapolis.com/news/

I need to edit lcp_paginator.css or something else?
What I need to edit, where?

In what file I need to put these?

img.lcp_catst { float:left; margin:5px 10px 5px 0; width:100px; height:100px; vertical-align:text-top; }

span.lcp_title {
display: block;
font-size: 11pt;
font-family: sans-serif;
}
span.lcp_excerpt {
display: block;
font-family: sans-serif;
}
.lcp_date p {
display: block;
}
#content ul.lcp_catlist li {list-style-type:none; display:block;}
ul.lcp_catlist li {list-style-type:none;}

Many, many thanks!!!!

http://wordpress.org/plugins/list-category-posts/