[tekguru]

I didn't revert but fixed the issue by taking the mod XML, looked for all <form> lines and added a

PHP Code:

<input type="hidden" name="securitytoken" value="$bbuserinfo[securitytoken]" /> 


after each and reloaded. I also changed the version number to 3.6.10.

Al I had then to do was go into the style editor to save each template to clear the 'you may need to edit flags. However when doing this I got on threadadmin_editthread:

The following error occurred when attempting to evaluate this template:
The conditional on line 34 appears to be missing its beginning tag (<if>). This may cause unexpected behavior.

This is likely caused by a malformed conditional statement. It is highly recommended that you fix this error before continuing, but you may continue as-is if you wish.

On looking that template it looks like there is one to many closing IFs in there which I removed to fix that problem.