[MarkFL]

One way would be to use a vb conditional in the respective templates. For example in the template "bbcode_code" replace:

{vb:raw code}

with:

<vb:if condition="$show['guest']">You must be registered and logged in to view code contents.<vb:else />{vb:raw code}</vb:if>

edit: I now realize you perhaps want to hide the entire boxes, rather than the content. If so then wrap all of the HTML in the templates with:

 <vb:if condition="$show['member']">Pre-existing template HTML in here</vb:if>