I started over. I had so much wrong, I had too.
Attached is my new file. When I open this php page in my browser and I enter information into the form, everything in my database updates correctly. Seems to be working great this way.
I basically want this simple form, working as is.. But changing the box next to "AvailFile:" from an input text field box to an File Upload field, so that a file can be uploaded to a folder (documents) on the server and the file name is updated in the "AvailFile" column of my database.
If I need to use DataAssist, How can I accomplish this in a simple fashion. When I open the DataAssist Wizard I get options for creating Display, Update, Insert, Search, etc. pages... much more than what I need.
Please advise. Thanks again for your help!