I have a couple of sections in manifest.xsf and I want to hide or display one specific section based on user permissions. How do I do it?
You can use conditional formatting & user roles for this if this is not a browser form - if it is a browser form, there are other options - one is described here.
How do I do 'Conditional Formatting & User Roles'?
I am not sure what you mean by 'Browser form'; it's a template and comes up on IE.
A browser form is an InfoPath form that users fill out in the browser - if the form opens in InfoPath, it is not a browser form.
You can learn more about conditional formatting and user roles here: http://office.microsoft.com/en-us/infopath-help/CH010059828.aspx
And here: http://office.microsoft.com/en-us/infopath-help/CH010059835.aspx
My InfoPath Form template manifest.xsf is a user input screen where users enter data in it and I open up this template in Visual Studio. Does it still mean it's not a browser form?
I am getting good help from the links you provided...
Check under the Form Options / Compatibility to see if it is a browser or filler form
The 'Browser' option is highlighted under Category.