Topic: Multiple simultaneous connections?

I recently got blocked by my web host's firewall for having too many simultaneous open connections to the server.  In analyzing what happened,  one thing that popped up as a question mark is SimpleViewer.  One of my web sites uses SimpleViewer, and I am wondering how many connections it opens at the same time when a page is viewed and it is loading all the pictures?

It appears from watching the pictures load that it is more than one, but I have no idea how many it does or what is going on in the background.

Could there be conditions where SimpleViewer could cause something like this?  I'd hate to have a visitor to the web site get blocked by the firewall because they changed pages one too many times, especially if "too many" is not a very high number.