woocommerce layout compatibility on third party theme

Hi,

I am using woocommerce 2.0.13 for wordpress 3.6. the theme I am using is heavenly.

When I installed woocommerce, the categories and product page layout were messed up. Using following link of documentation
https://docs.woothemes.com/document/third-party-custom-theme-compatibility/
I managed to solve the problem for categories using ‘woocommerce_content()’ but product page is looking blank.

Here goes a link for your ref.to show how it looks?
https://www.advancedphotonicsindia.com/?product_cat=optical-power-meters-benchtop-1936-r-2936-r-power-meters

As I am not a programmer at all I did not understand how to use hooks.

Is there anyone who can help me out of this.

Many thanks in advance