How can I have a submission section on my tumblr?

[michellegw]

My friend was in a car accident and is in a medically induced coma right now, so I've made a tumblr page called "Letters to Donovan" so I can write him letters of what's been going on. I thought that it would be nice if other people could write him letters as well for him to read, so I enabled the "Submit" link, but I dont want submissions to be on the main page with my letters. Is there a way to make a "submissions" link so on my page, he can click on a link that will take him to another page with everyone elses letters? Hope this made sense. Thanks.