They are using some theme named TBR. I am not sure what it means. And for your plugin query, We can't tell the exact numbers without visiting their wordpress admin panel.
TBR obviously stands for "This Blog Rules" and it is very likely that the theme is custom built. As mentioned above, you would need access to the admin panel to determine which plugins are used. Some will appear in the source code for the site, but not all.
Just from looking at the code on the index page... Plugins: WP-PageNavi Digg Digg Simple Tags You can work out more by blindly typing in plugin names to ***.com/wp-content/plugins/PLUGIN DIRECTORY NAME and seeing if it brings up a directory. Or write a script to do it.
Really i want to know how to post image gallery like this site ,all images resizing in a proper way .Any help please ..