External Search?

[GavoTrav]

What I want to do is put a search bar on my homepage, Its not part of vbulletin so when I try to search it gives me

Your submission could not be processed because a security token was invalid.

If this occurred unexpectedly, please inform the administrator and describe the action you performed before you received this error.

This is the code I Tried, I cannot find how to do the Security token

<form action="http://*****.com/forums/search.php?do=process" method="post">
<input name="do" value="process" type="hidden">
<input name="quicksearch" value="1" type="hidden">
<input name="childforums" value="1" type="hidden">
<input name="exactname" value="1" type="hidden">
<input name="s" value="" type="hidden">
<input name="securitytoken" value="http://*****.com/forums/$bbuserinfo[securitytoken]" type="hidden">
<div><input class="bginput" name="query" size="25" tabindex="1001" type="text"><input class="button" value="Go" tabindex="1004" type="submit"></div>
</form>

I Looked around the forum its probably here but I cannot find it. Any help please?