> 'Internal Server Error' (500) after 2 retries at link 
> Can I use WinHTTrack Website Copier 3.22-3 to download 
> these pages?  If so, what adjustments do I need to make?  

Humm, the error code is not really explicit.
It may be due to a filter against offline browsers, or a 
problem caused by multiple connections.

- set the maximum number of connection to 1
- set 'maximum transfer rate' to something reasonnable like 
10000B/s
- use in 'Browser identity' a standard browser ID (like 
Internet Explorer)