WP-Client secure members are and Theme

I recently purchased the WP-Client plugin from wp-client.com. It provides a secure members area that makes adding secure content so simple it’s ridiculous!

My problem is integrating it’s option to add a secure members area link to the menu. My theme Diverso, which was purchased from themeforest.net, uses CSS to format the menu options and include a graphics fro each item. As the members link isn’t added using the Appearance>Menu interface and doesn’t appear on it, I have not option to add the custom CSS.

Is there a way I can manually add CSS to a particular menu item by searching for it by name? For example a small section of code that loops through the menu array (if that’s what it is) and adds an id to the item representing the members link. I could then add CSS to format up the menu item.

Any ideas or suggestions are greatly appreciated

Thanks
Andy