Woocommerce dynamic pricing and color swatches not working

I added Woocommerce Variation Swatches and Images extension, configured the color attributes.

On the Swatches Tab I selected the Attribute Control Type and selected Taxonomy Colors and Images and saved the page.

I cannot get the swatch selector to display on the product detail page when I have 38+ variations.

And dynamic pricing not set for products.

Plz help me.

Woocommerce system status :
WC Version: 2.0.20
WC Database Version: 2.0.20
WP Version: WP 3.6.1
Web Server Info: Apache/2.2.22 (Win32) mod_ssl/2.2.22 OpenSSL/0.9.8u PHP/5.3.13
PHP Version: 5.3.13
MySQL Version: 5.5.24-log
WP Memory Limit: 64 MB
WP Debug Mode: No
WP Max Upload Size: 64 MB
PHP Post Max Size: 128 MB
PHP Time Limit: 7200
WC Logging: Log directory is writable.
Default Timezone: Default timezone is UTC
fsockopen/cURL: Your server has fsockopen and cURL enabled.
SOAP Client: Your server has the SOAP Client class enabled.
WP Remote Post: wp_remote_post() was successful – PayPal IPN is working.
Plugins
Installed Plugins: Contact Form 7 by Takayuki Miyoshi version 3.5.4,
Disable Comments by Samir Shah version 1.0.1,
Easy Instagram by VeloMedia version 1.2.5,
Full Screen Background Images Pro by Pippin Williamson version 1.3.4,
OrangeBox by David Hamilton version 3.0.0,
Regenerate Thumbnails by Viper007Bond version 2.2.4,
ShowBiz by ThemePunch version 1.3.1,
Simple Google Analytics by Jerome Meyer version 2.1.0,
SlideDeck 2 – Developer Addon Package by digital-telepathy version 2.3.6,
SlideDeck 2 Personal by digital-telepathy version 2.3.6,
SlideDeck 2 – Professional Addon Package by digital-telepathy version 2.3.6,
Theme My Login by Jeff Farthing version 6.3.8,
WooCommerce Advanced Notifications by WooThemes / Mike Jolley version 1.1.4 – 1.1.9 is available,
WooCommerce Advanced Ajax Layered Navigation by Sixty-One Designs, Inc. version 1.2.4 – 1.3.5 is available,
WooCommerce Checkout Field Editor by WooThemes / Mike Jolley / Patrick Garman version 1.1.4 – 1.2.3 is available,
WooCommerce Conditional Content by Lucas Stark version 1.0.2 – 1.1.3 is available,
WooCommerce Dynamic Pricing by Lucas Stark version 2.2.2 – 2.5.6 is available,
WP Menu Cart Pro by Jeremiah Prummer, Ewout Fernhout version 2.1.3,
WooCommerce Min/Max Quantities by WooThemes version 2.2.2 – 2.2.8 is available,
WooCommerce Product CSV Import Suite by Mike Jolley version 1.2.6 – 1.9.9 is available,
WooCommerce Predictive Search PRO by A3 Revolution version 2.2.2.1,
WooCommerce FedEx Shipping by WooThemes version 3.1.6 – 3.2.7 is available,
WooCommerce UPS Shipping by WooThemes version 2.0.12 – 2.0.16 is available,
WooCommerce Variation Swatches and Photos by Lucas Stark version 1.2.6 – 1.4.7 is available,
WooCommerce by WooThemes version 2.0.20,
WooThemes Updater by WooThemes version 1.1.3,
WP-DBManager by Lester ‘GaMerZ’ Chan version 2.63

https://wordpress.org/plugins/woocommerce/