Problems installing 133 Farm

Hi there !

My WP installation says that Farms 133 theme pack is properly installed, but that error messages appear:

Warning: fopen(/home/bemvindo/www/home/wp-content/themes/133-wpmu-farms-pack/style.css) [function.fopen]: failed to open stream: No such file or directory in /home/bemvindo/www/home/wp-includes/functions.php on line 4284

Warning: fread(): supplied argument is not a valid stream resource in /home/bemvindo/www/home/wp-includes/functions.php on line 4287

Warning: fclose(): supplied argument is not a valid stream resource in /home/bemvindo/www/home/wp-includes/functions.php on line 4290

Any clues for a non-programer entrepreneur ???

Thx !