Page Validates, but problems with validator

My web page validates, but I had two problems using the validator that I wish to report:

I have a hidden link to http://validator.w3.org/check/referer on my index page and used it when I was ready to validate the page.  I got my index page to validate, but the process was not as automatic as I thought it should be. The validator apparently does not support my URI and I get the W3C page with the error message 1( below).  Even after I entered my URI at the end of http://validator.w3.org/check?uri= in the address bar at the W3C page, I got Error Message 2 (below) saying that it could not find character encoding, even though I have made certain that my method of doing so in a meta tag corresponds to the W3C recommendation. 

My URI is http://www.stpetersparish.org/index.php and I suspect that your validator does not support the php extension. Regarding the second problem, the meta tag is <META http-equiv="Content-Type" content="text/html; iso-8859-1">

 Thanks -

William G. Hayes
HayesWG04@AmeliaIslandFL.org

ERROR MESSAGE 1:

Sorry, this type of URI scheme (undefined) is not supported by this service. Please check that you entered the URI correctly.

URIs should be in the form: http://validator.w3.org/

If you entered a valid URI using a scheme that we should support, please let us know as outlined on our Feedback page. Make sure to include the specific URI you would like us to support, and if possible provide a reference to the relevant standards document describing the URI scheme in question.

ERROR MESSAGE 2:

I was not able to extract a character encoding labeling from any of the valid sources for such information. Without encoding information it is impossible to validate the document. The sources I tried are: 

  a.. The HTTP Content-Type field. 
  b.. The XML Declaration. 
  c.. The HTML "META" element.