Backup Exec 10.1 can't use port 80

Backups were being done from a Win2k3 server that is failing and needs a full back-up itself. But it keeps erroring out during backup.

I have loaded Backup Exec on another Windows 2k3 server that is also running IIS to serve images to our website. The site uses Port 80

After installing Backup Exec the images fail on the website. I notice that by default BE uses Port 80 for HTTP. I need to change this to another Port.

I have read the kb http://www.symantec.com/docs/TECH24256, but that appears to be a global change. I want something that I can be sure effects ONLY BE, and will allow my web service to still function properly.