[tbworld]

At the FORUMHOME template find the following code and either remove it or comment it out.

<vb:comment>
   <div id="pagetitle">
      <h1>{vb:raw vboptions.bbtitle}</h1>
      <p id="welcomemessage" class="description">{vb:rawphrase welcome_to_the_x, {vb:raw vboptions.bbtitle}}</p>
  </div>
<vb:comment>

.

You can also change the phrasing in the phrase manager.
Do a search for the phrase "Welcome to the {1}"

I hope it helps