Hi Skip, thanks for this great mod. I do have an issue when using it though (similar or the same as mentioned above?).

Depending on my selection some backups succeed and some don't. Whenever I try to backup everything I get the internal server error message, and the following message appears in the server log:
mod_fcgid: read data timeout in 40 seconds, referer: ............admin/backup_zc.php
Premature end of script headers: backup_zc.php, referer: ...........admin/backup_zc.php
After viewing this log I tried another backup and recorded the time, and after 40 seconds I got the internal server error.

So I guess the problem/solution lies at the host?