http://pastebin.com/HzgY38gs Your doctype expects xml format, but your markup is not:
line 1: <html> is missing: xmlns="http://www.w3.org/1999/xhtml"
<head> is missing: <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
line 16: unclosed tag />
line 27: misspelled
line 43: use type="text/vbscript" instead of language="vbscript"
move this tag into the <head> tag
line 44: add Option Explicit
line 95: move the style information into the stylesheet
line 96: replace attributes with styles
line 98: replace align with a style in stylesheet
line 99: replace <b> with a style
line 103: same as line 98
line 104: <br unclosed. These could be replaced with css
<input should have an id attribute and the VBScript should use that id instead of the name
line 105: input could be replaced by a <button type="submit">
onclick should not be explicit on this tag. put it in the vbscript
line 109: id should be lowercase and the value quoted
line 110, 111: attributes names should be lowercase and the tags closed: />
line 113: move cellpadding to stylesheet
line 116: move width to stylesheet
line 117: ditto
line 122: move border and cellpadding to stylesheet
line 124: move width to stylesheet
line 133, 134: <td> and <br> are unclosed
line 133, 134, 137, 138: <input> is unclosed
line 141: replace align with a stylesheet property
line 142: <input> is unclosed. Could be replaced with a <button> tag, should use an ID instead of a name. onclick should not be explicit, move to vbscript
line 145: missing </html>