When you update the website, change the link to the audio file to its real URL on your hosted site, not to its location on your local drive.
1. Create the site using WebEasy:
Put a link on a page similar to: (example only)
Link->Internet->File = C:\public\MultiMedia Files\MP3\myaudiofile.mp3
The site uploads fairly slowly.
2. Update the site using WebEasy
Change the link on the page to the MP3 file that is already uploaded, similar to: (example only)
Link->Internet->World Wide Web Site = http://www.myisp/mywebsite/myaudiofile.mp3
The site uploads much quicker this time as the MP3 is already on the site