CCK E-mail field, display e-mail form in js dialog I set display cck field to 'e-mail contact form'. It lead to page like email/15/field_email.

Is this possible to display that form in modal dialog? Which modules I should use?
You can do this with a few lines of JavaScript.

All you need to do is to create a iframe that links the the clicked link and then open it in a dialog. jQuery UI has support for dialogs. There is modules for integrating jQuery UI and upgrading your jQuery version (if needed).

Once that is done, you can add the JavaScript to your theme to create the wanted effect.