Replace the older Hotlink protection code with the newer Hotlink protection code here: http://forum.ait-pro.com/forums/topic/hotlink-protection-do-not-block-google-bing-or-yahoo/
Manually physically check that your images are are loading correctly by going to the image URL’s and viewing the images.
The second log entry you posted shows that SERVER_PROTOCOL: HTTP/1.0 was used.
If you are using the Brute Force protection code that blocks Server Protocol HTTP/1.0 then you may not be able to use that code on your particular website/server. Server Protocol HTTP/1.0 may be used in older Proxy software that you have installed on your particular server.