VS 2005 / ASP - Cannot Find XML File Unless Hard Coded

The simple website I am trying to build is a list of banks with their corresponding website. I also wanted the ability to add banks/website with the use of some text boxes and a button click event. I've got this fully working until I publish it. When I try to run it on the webserver it say it can not find the specified file c:windowssystem32inetservURLs.xml Now I understand the problem I just can not seem to fix it with out hard coding the path of the file into code.

Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub btnAdd_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAdd.Click
' Load the Document
Dim Doc As New XmlDocument
Doc.Load("URLs.xml")
'Create a New Element
Dim bankNode As XmlNode
bankNode = Doc.CreateElement("bank")
'create and add sub elements for this node
Dim nameNode, addressNode, dateNode As XmlNode '
nameNode = Doc.CreateElement("name")
addressNode = Doc.CreateElement("address")
dateNode = Doc.CreateElement("date")
bankNode.AppendChild(nameNode)
bankNode.AppendChild(addressNode)
bankNode.AppendChild(dateNode)
'add the text data
nameNode.AppendChild(Doc.CreateTextNode(tbWebsite.Text))
addressNode.AppendChild(Doc.CreateTextNode(tbAddress.Text))
dateNode.AppendChild(Doc.CreateTextNode(DateTime.Today))
'add the new element to the end of the list
Doc.DocumentElement.AppendChild(bankNode)
'save it
Doc.Save("URLS.xml")
End Sub
End Class