Wordpress website / Jigoshop 1.1 updates / fixes / addons

For my website [login to view URL] I need an experience developer who can install updates for Wordpress and Jigoshop 1.1 which then need corrections to the php code, and css. A plugin has been developed for software serial numbers which need corrections to be made for the updates. Also a lot of css changes / additions have been made to the site, which will also need updates / corrections, as some of the changes will be overwritten by the WP and Jigoshop updates. Then some bug fixes need to be done in the custom Jigoshop serial plugin and a few additional woothemes / Jigoshop ecommerce plugins need to be made compatible with Jigoshop and the installed WP theme.