[Solved]Security error on php form post

[janaf]

I have tried

• Creating an all new style
• adding a security token in the code

Failed.

When I disable vB 4.0.6 Blog, the error dissapears!
Is this a bug I should report?

--------------- Added [DATE]1282212136[/DATE] at [TIME]1282212136[/TIME] ---------------

Talking to myself here but ragtek sent a solution. Adding this seems o solve my problem:

PHP Code:

$a.='<input type="hidden" name="securitytoken" value="';
$a.=vb::$vbulletin->userinfo[securitytoken];
$a.='" />';