Difficulty uploading an Act! Backup

Some users have reported issues uploading an Act! Zip Backup File via APC using their browser to upload the file ( HTTP). There are a lot of factor that can cause this, we suggest using FTP as it is the most reliable protocol for moving large files through the Internet.  
 
Here is a article on how to use FTP. 
http://support.rtgroup.com/kb/a53/how-to-upload-an-act-database-to-rtgs-hosting-service-via-ftp.aspx