Graham ArKumar 1/
I cannot tell the css code from an image so the colors will not be right and it will not be exactly the same
but something like this in global_stylesheet.css

/* the outer div */ .filelist_paging { } /* the current page */ .filelist_paging span { display:inline-block; border:1px solid #888; border-radius:2px; color:#777; background:#ccc; padding:0; margin:1px } /* the page links */ .filelist_paging a { display:inline-block; border:1px solid #888; border-radius:2px; color:#777; background:#ddd; padding:0; margin:1px; text-decoration:none; }

2/
the custom paging script is the first one on that page it goes in a code block above the filelist
but that uses different css class names and the user has probably considerably altered the script to suit his page so until you know more coding you should probably just stick to the simple css route