it's not that easy. You need to use an Active X component so the user will be able to actually upload the selected file. The File button is nothing more than a special input button. You will find instructions by reading the reference of the component.<BR><BR>Try SA File Up or Smart Upload.
Button's simple:<BR><BR><input type="file" name="file"><BR><BR>Code's slightly more complex. Try using the upload component from Persits software. http://www.persits.com. It's pretty simple, with lots of documentation.