why doesn't the xhtml validate

I don't understand why this form will not validate. It claims that I have not closed an input tag and that I have a closing input tag that is not open.

The page in question is http://squareownz.org/dunkyp/index.py

http://validator.w3.org/check?uri=http%3A%2F%2Fsquareownz.org%2Fdunkyp%2Findex.py

This page however doesn't agree that the code is valid.

From stackoverflow

• You should use <input /> instead of <input></input>

• You can't have closing input tags, you need to self-close them:

  <input type="text" name="title" value=""></input>
  

  ->

  <input type="text" name="title" value="" />
  

• try to reform your input tags to

  <input />
  instead of
  <input></input>
  

  I think that is it

  edit: damn people response fast here I see my solution has already been suggested.