Trying to submit a filename to a website form for upload.

There is a site on our company's INTRANET that I need to upload a file to.
This is a FORM that needs the fileName to be populated, but I have not been able to get it to accept fileName from any means I have tried. I have ALL of the other fields working and it is to the point all I need to do is manually select the file, but I need to automate this.

I have been able to access the site, stuff all kinds of other info into the websites varables, but I have NOT been able to stuff the fileName to upload.
Here is the code (including some failed attempts) to get the file name into the web page.
First, I am opening the page and logging in with a userform ("fNTLogin")

Please Login or Register  to view this content.

Here is the webpage html code that needs to recieve the filename:

Please Login or Register  to view this content.

Thanks
Bruce