The problem is, we have created the form as a stand-alone form to be used with adobe reader. (we're not using a server yet) The process is that the form is completed by one user and they click a submit button to forward it to their mgmt for approval. After the mgr approves it, they use a different submit button to forward it to a diffrent group as "approved" We just need to make sure that only the mgmt team can "approve" the forms.
You could prompt the user to enter a password a number of ways and only allow the "submit" to take place if the password is valid. But realize that this can't be considered strong security.
There are JavaScript methods for prompting the user for a password, but I'm not exactly sure how you'd implement it in Designer. In Acrobat you could use an app.response prompt or a custom dialog.
George