Changes to current Woo commerce theme

Hi We have 2 requirements at present, though we need a reliable person or team for php type issue arising on our 15+ websites. 1. We have the 'Woocommerce Color or Image Variation Swatches' plugin activated, but though we can add the image for the swap, they are not swapping - please see: [login to view URL] the little swatch images are next to where it says 'Foundation Colours', which clicked the main image should change. If you don't use the plugin we have installed - any new one needs to be free to update moving forward- , so that theres no problem when we update the Woo commerce plugin or indeed the theme itself. 2. On the same page (though for all products) there is a 'Find A Stockist Button' , this has been changed from the normal 'Buy Now' or 'Add to Cart' options button for another website (where we are using the same theme). simply put I need this put back to be the default 'Buy Now' and on clicking this adds the chosen product and variation to the shopping basket. -- So 1. is making the plugin work, and 2. is finding the right file and returning this to the standard Woo commerce functionality. Happy Bidding.