Add PayPal button in thread

[The Slug]

Hi I need some help...

My members want to purchase an item off the site and want a paypal button in the thread to do it.
Created the button after lots of time and trials, but now when you press on it I get the message:

"Your submission could not be processed because a security token was missing"

Any ideas? as I dont have a clue after reading all day for a solution, I understand less now than before, but I have seen a thread on a site showing it can work but did not follow the solution for that either!!!

All help gratefully received

[Simon Lloyd]

You'd have to provide the code on how you did it in order for us to show you what you need

[The Slug]

Originally Posted by Simon Lloyd

You'd have to provide the code on how you did it in order for us to show you what you need

Thanks Simon, this is the code I used in the thread.

PHP Code:

<form target="paypal" action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="S2PFJ2K5X8FT4">
<table>
<tr><td><input type="hidden" name="on0" value="2013 Calendar (international)">2013 Calendar (international)</td></tr><tr><td><select name="os0">
 <option value="Member">Member ?13.10 GBP</option>
 <option value="Non-Member">Non-Member ?15.10 GBP</option>
</select> </td></tr>
</table>
<input type="hidden" name="currency_code" value="GBP">
<input type="image" src="https://www.paypalobjects.com/en_GB/i/btn/btn_cart_LG.gif" border="0" name="submit" alt="PayPal — The safer, easier way to pay online.">
<img alt="" border="0" src="https://www.paypalobjects.com/en_GB/i/scr/pixel.gif" width="1" height="1">
</form> 


I then save it, go back in >edit advanced remove the PHP comments and take the tick out of parse and save again then you get the button etc.