Show usergroup name in emails?

[kpmedia]

I can use $bbuserinfo[usergroupid], and it'll echo the number in the emails.
But I can't seem to find a way to make it echo the name of the group. I tried to write a plugin, but it did nothing.

This is where I started...

PHP Code:

if ( $bbuserinfo['usergroupid'] == "6" ) {echo "Site Administrators";} 


... but it's just not working well, regardless of what I try.

Any ideas on what plugin syntax would need to be?

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