I maintain a website for a conference for small business owners in Iowa.  Last year, I used a link that passed the userid to another site as a unique field so that people could pay with a credit card.  This year, I am wanting to do the same thing.  I re-arranged a couple modules, but did not change my link, but now it is not working.  The part of my link that contains the code for the userid is as follows: x_cust_id=[User:UserID]  Is this correct?  I am having each user actually register on the website, then complete a few more questions on a form before it routes them to a page that lets them know their registration for the conference is not complete until they click on the link to complete their credit card payment.  I'm not a great programmer so any help would be great.  Thanks!