For the User Address and User Extrainfo go to the corresponding Admin.
There you have 2 buttons:
1. Optional Settings
2. Registration Settings.

Under Optional Settings you can decide what fields are optional (no mark on the checkbox) or non optional (mark the checkbox).
Under Registration Settings you can decide what field will be displayed (no mark) or not displayed (mark) on the registration form.

So some thinks are very easy under OPN.

i want to change some optional to non optional and don't show some fields like

ICQ and AIM.

1) by your own. Anypage has not such a feature (yet)
2) hmmm, hard tu guess. What do you want to be changed?

Alex

1)i am working in opn2.0.1 and i want to add a form.
the form add in db.

if a make the form with anypage the fields in db i must add them by own or can i add them from opn?

2)if i want to change the registration form what i have to do?