[Dead Eddie]

<vb:if condition="isset($crumb['phrase']) AND !empty($crumb['phrase'])">
					{vb:set crumbTitle, {vb:rawphrase {vb:raw crumb.phrase}}}
				<vb:else />

Ultimately, it's probably going to look something like this:

<vb:if condition="isset($crumb['phrase']) AND !empty($crumb['phrase'])">
<vb:if condition="$crumb['phrase'] != 'forum'>					
{vb:set crumbTitle, {vb:rawphrase {vb:raw crumb.phrase}}}
</vb:if>
				<vb:else />