as per your instructions on the website I tried installing this plugin directly by adding it via admin page. everytime it showed me this error
Downloading install package from http://downloads.wordpress.org/plugin/woocommerce.2.0.4.zip…
( ! ) Fatal error: Maximum execution time of 30 seconds exceeded in C:\wamp\www\wordpress\wp-includes\class-http.php on line 945
Call Stack
# Time Memory Function Location
1 0.0016 203456 {main}( ) ..\update.php:0
2 1.4225 12865040 Plugin_Upgrader->install( ) ..\update.php:117
3 1.4227 12870104 WP_Upgrader->run( ) ..\class-wp-upgrader.php:405
4 1.4286 12973264 WP_Upgrader->download_package( ) ..\class-wp-upgrader.php:299
5 1.4293 12956936 download_url( ) ..\class-wp-upgrader.php:118
6 1.5312 12957784 wp_remote_get( ) ..\file.php:490
7 1.5312 12957840 WP_Http->get( ) ..\http.php:76
8 1.5313 12958432 WP_Http->request( ) ..\class-http.php:293
9 1.5328 12962416 WP_Http->_dispatch_request( ) ..\class-http.php:187
10 1.5328 12962472 WP_Http_Streams->request( ) ..\class-http.php:250
Kindly help me out.