Using a tab control, how to restrict a certain tab with pass/login

im making a database project in access that is going to display customer feedback in different ways, for review, to edit and enter etc.

using a tab control for access to each one, i would appreciate to know if i could make, for example the first or and second tab accessable to all and have some kind of admin verification via a pop up password dialog box appear when tabs three and four are clicked.
Thanks in advance if anyone has any information

and out of curiosity, on recommendation or personal comments : VB6 or .NET?

If I am reading you right what you want to do is restrict some users from certain features right?

You could try using VBA IF Then Else statements. Example

If you have a table of users add three fields :
User
Supervisor
Administrator

Make them yes/no fields

On your form add fields that will contain the users data from your table, you can disable or hide the fields if you wish.

Then incorporate a logic statement into the form like the on open event.

If User = True Then
Control1.enabled = true
Control2.enabled = false
Control3.enabled = false
Else
End If

If Supervisor = true Then
Control1.enabled = true
Control2.enabled = true
Control3.enabled = False
Else
End If

If Administrator = true Then
Control1.enabled = true
Control2.enabled = true
Control3.enabled = true
Else
End If

Basically you would set up a user permissions scenario and make them log in initially, which would control what they have access to.

I have found this is much more user friendly in the long run.

If thats not what your after, ill try to help more if you give a little more info