I use Tracking 202 to track which keywords are getting to my website from Adwords. From there they go to an Aweber form to opt in.
I would like to track the keyword the customer used for customers that actually opt-in.
I asked Aweber. They said to set up a hidden custom field. Ok, no problems there. Now I want to capture the keyword which is actually in the URL from T202 and put it in the hidden field.
I have tried
<input type="hidden" name="custom_key" value="<?php echo $HTTP_SESSION_VARS ["t202kw"]; ?>">