Hi,
This may help:
1. Go to the PageCompose database table and look for the page you want to modify in the "Page" column. Eg if you want to change the look of the box on the home page look for "Page=index" in the table if you want to change the box on the member page looke for "Page-member".
2. Once you have indentified the page in the database , then look for the row that describes the box you want to change.
3. Then for that particular row change the DesignBox value . The default is 1, 0 will show only the content and then you can specify how you want the content to be displayed or you can create your own designbox.html (look in Dolphin\templates\tmpl_uni) and change the value for DesignBox to your own newly created value.
4. Will probably also need to specify somewhere in code what designbox to be used based on database value, not sure where?
Not really expert but I think this is roughly how it works