Hey Kristin, You may also need to check the queue settings for the request queue, as there's a section much like what Vic is showing on the project, but for requests:
http://drop.workfront.com/5284f414cd04 As long as they have Contribute rights with "Edit Custom Form" checked off, they should see the name of the custom form. You may also want to confirm that there are no section breaks with special access settings on the form, as that could restrict access, see below for an example:
http://drop.workfront.com/a3d80c818ad1 Good luck! Dustin Martin Assigned Support Engineer Workfront