XF 1.3 Recreating Spoiler Tag

[Eric J.]

I think this goes here. Anyways, I recently finished moving these guys from vB4 and I'm having a bit of trouble. They have a large forum, so the post find/replace tool by Kier is greeting me with a blank page. So I tried creating a [hide] tag (The one that needs changing) and putting in the HTML for the spoiler buttons. But it results in this:
http://pokemon-online.eu/index.php?threads/ban-list-4.18296/

Here's my HTML replacement:

<div class="ToggleTriggerAnchor bbCodeSpoilerContainer">
    <button class="button bbCodeSpoilerButton ToggleTrigger Tooltip JsOnly" data-target="&gt; .SpoilerTarget"><span>Spoiler: {option}</span></button>
    <div class="SpoilerTarget bbCodeSpoilerText">{text}</div>
</div>

Any ideas of what I'm doing wrong? Is there an easier way to go about this? Any help would be great.