Great job on the user portal. Before I make our users aware of this portal, we don't use any other Helpdesk other than the IT Helpdesk and we don't use any categories, we're simple that way. It is possible for an admin to "tweak" this so that the end user can't make any of those changes while creating a ticket? If not, that's fine, I can instruct them on how to open a proper ticket for us.
Thanks