quick launch header edit

I am trying to set up a team site in sharepoint.

I want to put a link (header) in the quick launch for a web-part page. Is this possible?

I have added new headers in the quick launch, but I dont know how (where) to edit the page. I click on the link and i go to a page: "This page does no exists".

Is there an another way?

I am not myself a programmer and I dont have sharepoint designer.

Thank you!