"Editing CV" section on my site, a question

the site is just for a uni coursework. on the site people can register and there are forms on 5 pages. now the problem is that for the coursework i have to let users edit their CV details.

Now do I just copy and paste all the forms and get the values from Database and put them in the forms or do i use the current forms and put code on there?

what i am saying is do i use one set of forms for both purposes or do i just copy them all and code it that way?

I always found it easy to seperate things out a bit. I use an INSERT form for registering new users. For updating records I use a seperate UPDATE form. I think it's just preference or what you are comfortable with, but my PHP is not A1 so I prefer to keep things simple.