Auto Populate User ID - HELP!

I AM RE-POSTING THIS BECAUSE I HAVEN'T RECEIVED A REPLY SINCE LAST WEEK :(.

I am trying to send out a "member id number" after the user fills out a registration form. I need this to be 10 digits long with the first two being "CF".

I found this thread - http://www.gravityhelp.com/forums/topic/guid-entry-id#post-3993

However, I can't get this to work for me. Can you help me figure out what I may be doing wrong?

http://www.gravityhelp.com/forums/topic/guid-entry-id#post-14915

- I added the code to the function.php page
- Updated the prefix, form id & field id
- I created a hidden field, check on auto populate and put uuid in the parameters box.

I am getting nothing....

Here is the link to the form - http://contitruck.com/contifleet/

Hey Carmen, I just did a quick test on my dev site and got this working in about 5 mins, so it's gotta be something small that's going on here. Could you send me a login for your site to rob@rocketgenius.com and I'll take a look.

*EDIT*
Just saw your original post - for the incremental you're going to need to hire a developer, the snippet David provided is only for random numbers - I can help you with that if you'd like. Otherwise you should post on our Job Board:

http://www.gravityhelp.com/forums/forum/job-board

Carmen, just emailed you, but can you send me the FTP info for your site? I also emailed you a functions.php file to the email address you have on file here at the forums.

This has been resolved.