[Plugin: Verve Meta Boxes] Styling verve meta boxes in dashboard

Is it possible to style the verve meta boxes in the dashboard.
What I would like to do is that I am using text boxes for a tag line and want to increase the width of the box without changing plugin files because when updated I will lose changes. I know I can use the textarea box but that will give the client to much temptation to write more than needed.
Also the main question is whether there is way to select where the meta boxes will be displayed ie. I have tick boxes for styling different posts and would like them to appear in the sidebar under the publish button and page attributes.

Thanks in advance
Excellent plugin by the way.