I found this in the upload scripts read me file:
The clsUpload object contains public functions and methods
which enable you to upload and save files to a web server using
pure VBScript.
Read only
Data Type: Dictionary Collection
Syntax: object.Form
Returns a Forms collection consisting of all the Form objects
parsed from the HTTP header.
This collection contains all the HTML form elements which are
not "Files"
This collection should be used instead of the typical
"request.form" method to access data from the other form elements
(if you decide to combine "file" upload elements with other form
element types, like checkboxes, text boxes, drop-down lists,
textareas). Why? Because the form data is posted using
"multipart/form-data" encoding (and needs to be retrieved like
binary data instead of text data) and therefore the typical
"request.form" method isn't effective.
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I changed request.form to clsUpload.form but it still did not
work.