My users are (will be as it is a project, not already online!) registered in my database, and so have a login/password.
I would like that, when they are logged in their account, they can submit new tickets (that, it is ok!), and that these tickets will be "stored" in a "user" account. This "user account" will be their login. So each of my logged in user will have later his list of tickets opened/closed, and the ability to add new tickets in this list. The "helpdesk" user account would be created by my script, when a new user is registered it will be automatically registered in the helpdesk system too. My scripts are in perl but I should be able to do this (insert a record in a mySQL base).
The helpdesk should also be able to work for NON registered users; in fact maybe creating a "false user" that would group all tickets from not registered people?
I hope I have been clear enough

And of course, every job deserves a payment, no problem!
Thanks!